KIM JAE-HWAN via Getty Images
北朝鮮が「水爆実験」と主張する核実験の実施に対抗して、韓国軍は1月8日午後1時から、北朝鮮に向けた拡声機での宣伝放送を4カ月ぶりに再開した。
核実験の実施表明を受け、与党議員から強硬対応を求める声が相次いだのを受け、7日の青瓦台（大統領府）の国家安全保障会議（NSC）で決まった。韓民求（ハン・ミング）国防相は7日の国会で、核実験への対応について「政府の取ることができる対応策は多様なので、総合的に検討して段階的に実行していく」と述べた。
2015年に南北の軍事境界線近くで地雷が爆発し、南北の緊張が高まったことで、韓国政府は同年8月10日から、11年間中断していた拡声機による宣伝放送を再開した。しかし、8月25日、南北は放送中断で合意していた。
北朝鮮の反発は必至だ。2015年の宣伝放送には「北朝鮮軍幹部の処刑など、住民が接しにくい内部情報と、自由民主主義体制の優越性、世界のニュース、天気情報、音楽など、以前よりも多彩な内容」だったとみられ、金正恩氏体制への冒瀆と受け取る北朝鮮は、宣伝放送を中止するよう、再三にわたって南北協議で求めてきた経緯がある。
▼関連スライドショー（写真をクリック）▼
韓国と北朝鮮、高まる緊張（2015年8月21日～）
APTOPIX South Korea Koreas Tension(01 of64)
A man watches a TV news program reporting South Korea and North Korea reached an agreement, at the Seoul Railway Station, South Korea, Tuesday, Aug. 25, 2015. After 40-plus-hours of talks, the two Koreas on Tuesday pulled back from the brink with an accord that allows both sides to save face and avert the bloodshed they\'ve been threatening each other with for weeks. Korean letters on the screen read: \"Separated family members stage the reunions around Chuseok, the Korean version of Thanksgiving Day.\" (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(02 of64)
People watch a TV news program reporting South and North Korea reached an agreement, at the Seoul Railway Station, South Korea, Tuesday, Aug. 25, 2015. After 40-plus-hours of talks, the two Koreas on Tuesday pulled back from the brink with an accord that allows both sides to save face and avert the bloodshed they\'ve been threatening each other with for weeks. Korean letters on the screen read: \"The agreement was announced at 2 o\'clock.\" (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
APTOPIX South Korea Koreas Tensions(03 of64)
South Korean presidential security adviser Kim Kwan-jin speaks during a press conference at the presidential house in Seoul, South Korea, Tuesday, Aug. 25, 2015. South Korea has agreed to halt propaganda broadcasts at noon Tuesday after North Korea expressed regret over a recent land mine blast that maimed two South Korean troops, both Koreas announced after three days of intense talks aimed at defusing soaring tension between the rivals.(AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tensions(04 of64)
South Korean presidential security adviser Kim Kwan-jin, right, speaks during a press conference as South Korean Unification Minister Hong Yong-pyo, left, listens at the presidential house in Seoul, South Korea, Tuesday, Aug. 25, 2015. South Korea has agreed to halt propaganda broadcasts at noon Tuesday after North Korea expressed regret over a recent land mine blast that maimed two South Korean troops, both Koreas announced after three days of intense talks aimed at defusing soaring tension between the rivals.(AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(05 of64)
In this photo provided by the South Korean Unification Ministry, South Korean Unification Minister Hong Yong-pyo, left, shakes hands with Kim Yang Gon, right, a senior North Korean official responsible for South Korean affairs, as South Korean presidential security adviser Kim Kwan-jin looks on after their meeting at the border village of Panmunjom in Paju, South Korea, Tuesday, Aug. 25, 2015. South Korea has agreed to halt propaganda broadcasts at noon Tuesday after North Korea expressed regret over a recent land mine blast that maimed two South Korean troops, both Koreas announced after three days of intense talks aimed at defusing soaring tension between the rivals.(The South Korean Unification Ministry via AP) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(06 of64)
In this photo provided by the South Korean Unification Ministry, South Korean Unification Minister Hong Yong-pyo, right, and presidential security adviser Kim Kwan-jin, second from left, pose with Kim Yang Gon, right, a senior North Korean official responsible for South Korean affairs, and Hwang Pyong So, North Korea\' top political officer for the Korean People\'s Army, after their meeting at the border village of Panmunjom in Paju, South Korea, Tuesday, Aug. 25, 2015. South Korea has agreed to halt propaganda broadcasts at noon Tuesday after North Korea expressed regret over a recent land mine blast that maimed two South Korean troops, both Koreas announced after three days of intense talks aimed at defusing soaring tension between the rivals.(The South Korean Unification Ministry via AP) (credit:ASSOCIATED PRESS)
APTOPIX South Korea Koreas Tension(07 of64)
In this photo provided by the South Korean Unification Ministry, South Korean presidential security adviser Kim Kwan-jin, right, shakes hands with Hwang Pyong So, North Korea\'s top political officer for the Korean People\'s Army, after their meeting at the border village of Panmunjom in Paju, South Korea, Tuesday, Aug. 25, 2015. After 40-plus-hours of talks, North and South Korea on Tuesday pulled back from the brink with an accord that allows both sides to save face and, for the moment, avert the bloodshed they\'ve been threatening each other with for weeks. (The South Korean Unification Ministry via AP) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(08 of64)
In this photo provided by the South Korean Unification Ministry, South Korean presidential security adviser Kim Kwan-jin, right, and Unification Minister Hong Yong-pyo, second right, shake hands with Hwang Pyong So, left, North Korea\' top political officer for the Korean People\'s Army, and Kim Yang Gon, a senior North Korean official responsible for South Korean affairs, during after their meeting at the border village of Panmunjom in Paju, South Korea, Tuesday, Aug. 25, 2015. South Korea has agreed to halt propaganda broadcasts at noon Tuesday after North Korea expressed regret over a recent land mine blast that maimed two South Korean troops, both Koreas announced after three days of intense talks aimed at defusing soaring tension between the rivals. (The South Korean Unification Ministry via AP) (credit:ASSOCIATED PRESS)
South Korea Koreas Tensions(09 of64)
South Korean army soldiers ride on a truck in Paju, south of the demilitarized zone that divides the two Koreas, South Korea, Monday, Aug. 24, 2015. Marathon negotiations by senior officials from the Koreas stretched into a third day on Monday as the rivals tried to pull back from the brink. South Korea\'s military, meanwhile, said North Korea continued to prepare for a fight, moving unusual numbers of troops, hovercraft and submarines to the border. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tensions(10 of64)
South Korean army soldiers stand guard on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Monday, Aug. 24, 2015. Marathon negotiations by senior officials from the Koreas stretched into a third day on Monday as the rivals tried to pull back from the brink. South Korea\'s military, meanwhile, said that unusual North Korean troop and submarine movement indicated continued battle preparation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tensions(11 of64)
A South Korean army soldier checks a driver identity at a check point on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Monday, Aug. 24, 2015. Marathon negotiations by senior officials from the Koreas stretched into a third day on Monday as the rivals tried to pull back from the brink. South Korea\'s military, meanwhile, said that unusual North Korean troop and submarine movement indicated continued battle preparation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tensions(12 of64)
South Korean army soldiers ride on trucks in Paju, south of the demilitarized zone that divides the two Koreas, South Korea, Monday, Aug. 24, 2015. Marathon negotiations by senior officials from the Koreas stretched into a third day on Monday as the rivals tried to pull back from the brink. South Korea\'s military, meanwhile, said North Korea continued to prepare for a fight, moving unusual numbers of troops, hovercraft and submarines to the border. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(13 of64)
South Korean amy soldiers walk on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Sunday, Aug. 23, 2015. The first high-level talks in nearly a year between South Korea and North Korea were adjourned after stretching into the early hours of Sunday, as the rivals looked to defuse mounting tensions that have pushed them to the brink of a possible military confrontation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(14 of64)
South Korean amy soldiers walk on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Sunday, Aug. 23, 2015. South Korean and North Korean officials have resumed the second round of their high-level talks in the border village of Panmunjom on Sunday afternoon in an effort to ease mutual tension, South Koreaâs presidential office said. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(15 of64)
A South Korean amy soldier walks as his colleague soldiers stand guard on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Sunday, Aug. 23, 2015. The first high-level talks in nearly a year between South Korea and North Korea were adjourned after stretching into the early hours of Sunday, as the rivals looked to defuse mounting tensions that have pushed them to the brink of a possible military confrontation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(16 of64)
South Korean amy soldiers conduct their military exercise in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Sunday, Aug. 23, 2015 South Korean and North Korean officials have resumed the second round of their high-level talks in the border village of Panmunjom on Sunday afternoon in an effort to ease mutual tension, South Koreaâs presidential office said. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(17 of64)
South Korean army\'s multiple rocket launch systems are deployed in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Sunday, Aug. 23, 2015. South Korean and North Korean officials have resumed the second round of their high-level talks in the border village of Panmunjom on Sunday afternoon in an effort to ease mutual tension, South Koreaâs presidential office said. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(18 of64)
In this photo provided by the South Korean Unification Ministry, South Korean Unification Minister Hong Yong-pyo, left, and National Security Director, Kim Kwan-jin, second from left, meet with Kim Yang Gon, right, a senior North Korean official responsible for South Korean affairs, and Hwang Pyong So, North Korea\' top political officer for the Korean People\'s Army, at the border village of Panmunjom in Paju, South Korea, Saturday, Aug. 22, 2015. (The South Korean Unification Ministry via AP) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(19 of64)
In this photo provided by the South Korean Unification Ministry, South Korean National Security Director, Kim Kwan-jin, right, and Unification Minister Hong Yong-pyo, second from right, shake hands with Hwang Pyong So, left, North Korea\' top political officer for the Korean People\'s Army, and Kim Yang Gon, a senior North Korean official responsible for South Korean affairs, during their meeting at the border village of Panmunjom in Paju, South Korea, Saturday, Aug. 22, 2015. South Korea and North Korea agreed Saturday to hold their first high-level talks in nearly a year at a border village to defuse mounting tensions that have pushed the rivals to the brink of a possible military confrontation. (The South Korean Unification Ministry via AP) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(20 of64)
South Korean army soldiers ride on a truck in Yeoncheon, south of the demilitarized zone that divides the two Koreas, in South Korea, Saturday, Aug. 22, 2015. South Korea and North Korea agreed Saturday to hold their first high-level talks in nearly a year at a border village to defuse mounting tensions that have pushed the rivals to the brink of a possible military confrontation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(21 of64)
A South Korean resident enters into a shelter in Yeoncheon, south of the demilitarized zone that divides the two Koreas, in South Korea, Saturday, Aug. 22, 2015. South Korea and North Korea agreed Saturday to hold their first high-level talks in nearly a year. The meeting, scheduled for 6 p.m. Seoul time in Panmunjom, would come 30 minutes after the deadline set by North Korea for South Korea to dismantle loudspeakers broadcasting anti-North Korean propaganda at their border. South Korean officials said they told thousands of residents to move to shelters ahead of the Saturday afternoon deadline. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(22 of64)
South Korean army soldiers ride on their truck in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Saturday, Aug. 22, 2015. The two Koreas prepared for a possible military clash Saturday as the North\'s deadline loomed for Seoul to dismantle loudspeakers broadcasting anti-North Korean propaganda across their border. North Korea has declared its frontline troops are in full war readiness and prepared to go to battle if Seoul doesn\'t back down. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(23 of64)
South Korean army\'s armored vehicles move in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Saturday, Aug. 22, 2015. The two Koreas prepared for a possible military clash Saturday as the North\'s deadline loomed for Seoul to dismantle loudspeakers broadcasting anti-North Korean propaganda across their border. North Korea has declared its frontline troops are in full war readiness and prepared to go to battle if Seoul doesn\'t back down. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(24 of64)
South Korean army\'s armored vehicle moves in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Saturday, Aug. 22, 2015. The two Koreas prepared for a possible military clash Saturday as the North\'s deadline loomed for Seoul to dismantle loudspeakers broadcasting anti-North Korean propaganda across their border. North Korea has declared its frontline troops are in full war readiness and prepared to go to battle if Seoul doesn\'t back down. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(25 of64)
South Korean residents arrive to enter a shelter in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Saturday, Aug. 22, 2015. The two Koreas prepared for a possible military clash Saturday as the North\'s deadline loomed for Seoul to dismantle loudspeakers broadcasting anti-North Korean propaganda across their border. North Korea has declared its frontline troops are in full war readiness and prepared to go to battle if Seoul doesn\'t back down. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(26 of64)
A South Korean amy soldier stands guard behind a barricade on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Saturday, Aug. 22, 2015. The letters at a banner read \" Disapproved Vehicles\". South Korea and North Korea agreed Saturday to hold their first high-level talks in nearly a year at a border village to defuse mounting tensions that have pushed the rivals to the brink of a possible military confrontation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(27 of64)
South Korean army soldiers adjust a barricade set up on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Saturday, Aug. 22, 2015. North Korean leader Kim Jong Un on Friday declared his front-line troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(28 of64)
A South Korean family member gets off a truck as they arrive to enter a shelter in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Saturday, Aug. 22, 2015. The two Koreas prepared for a possible military clash Saturday as the North\'s deadline loomed for Seoul to dismantle loudspeakers broadcasting anti-North Korean propaganda across their border. North Korea has declared its frontline troops are in full war readiness and prepared to go to battle if Seoul doesn\'t back down. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(29 of64)
South Korean army soldiers check the identification of a motorist at the checkpoint on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Saturday, Aug. 22, 2015. North Korean leader Kim Jong Un on Friday declared his front-line troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. The banner at right reads: \"No entry, vehicles disapproved.\" (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(30 of64)
South Korean army soldiers adjust barricades set up on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Saturday, Aug. 22, 2015. North Korean leader Kim Jong Un on Friday declared his front-line troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. The barricade reads: \"Vehicles disapproved.\" (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(31 of64)
A South Korean army soldier walks along the military wire fences on Unification Bridge, which leads to the demilitarized zone, near the border village of Panmunjom in Paju, South Korea, Saturday, Aug. 22, 2015. North Korean leader Kim Jong Un on Friday declared his front-line troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(32 of64)
People watch a television news program showing North Korean leader Kim Jong Un at Seoul train station in Seoul, South Korea, Friday, Aug. 21, 2015. Kim on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. The letters at the screen read: \"North Korea orders military to have full combat readiness.\" (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
China Koreas Tension(33 of64)
Under the portraits of the late North Korean leaders, Kim Il Sung, left, and Kim Jong Il, North Korean Ambassador to China Ji Jae Ryong speaks during a press conference on the latest tensions with South Korea at the North Korean Embassy in Beijing, Friday, Aug. 21, 2015. North Korean leader Kim Jong Un on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (AP Photo/Ng Han Guan) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(34 of64)
South Korean protesters with defaced portraits of North Korean leader Kim Jong Un shout slogans during an anti-North Korean rally in Seoul, South Korea, Friday, Aug. 21, 2015. The North leader on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. The letters at right read: \"Explode the statues of Kim Il Sung and Kim Jong Il !\" (AP Photo/Julie Yoon) (credit:ASSOCIATED PRESS)
North Korea Koreas Tensions(35 of64)
People walk past a large screen broadcasting a propaganda movie showing soldiers chanting slogans while raising their weapons in Pyongyang, North Korea, Friday, Aug. 21, 2015. North Korea on Friday declared its frontline troops in a \"a quasi-state of war\" after the north and south accusing each other of firing at each other across the world\'s most heavily armed border. The Korean on the screen reads: \"Our supreme leader is the heart of 10 million.\" (AP Photo/Dita Alangkara) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(36 of64)
South Korean protesters with defaced portraits of North Korean leader Kim Jong Un and North Korean flags shout slogans during an anti-North Korean rally in Seoul, South Korea, Friday, Aug. 21, 2015. The North leader on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(37 of64)
A portrait of North Korean leader Kim Jong Un is burnt by South Korean protesters during an anti-North Korean rally in Seoul, South Korea, Friday, Aug. 21, 2015. The North leader on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(38 of64)
South Korean army soldiers stand guard at Unification Bridge near the border village of Panmunom in Paju, South Korea, Friday, Aug. 21, 2015. South Korea fired dozens of shells Thursday at rival North Korea after the North lobbed several rounds across the world\'s most heavily armed border and threatened to take further action unless Seoul ends its loudspeaker broadcasts. The North denied it fired any shots and warned of retaliation for what it called a serious provocation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(39 of64)
South Korean residents gather at a shelter in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Friday, Aug. 21, 2015. South Korea fired dozens of shells Thursday at rival North Korea after the North lobbed several rounds across the world\'s most heavily armed border and threatened to take further action unless Seoul ends its loudspeaker broadcasts. The North denied it fired any shots and warned of retaliation for what it called a serious provocation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
Russia Koreas Tensions(40 of64)
North Korean Ambassador to Russia Kim Hyun-joon, second right, holds a news conference in the North Korean Embassy in Moscow, Russia, Friday, Aug. 21, 2015. North Korean leader Kim Jong Un, pictured top right, on Friday declared his front-line troops in a \"quasi-state of war\" and ordered them to prepare for battle against South Korea in response to an exchange of artillery fire on the border Thursday. (AP Photo/Ivan Sekretarev) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(41 of64)
South Korean army soldiers ride on a truck in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Friday, Aug. 21, 2015. North Korean leader Kim Jong Un on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (Park Young-tae/Newsis via AP) KOREA OUT (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(42 of64)
South Korean anti-war protesters stage a rally demanding peace and reunification of the Korean peninsula near the presidential house in Seoul, South Korea, Friday, Aug. 21, 2015. North Korean leader Kim Jong Un on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (AP Photo/Julie Yoon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(43 of64)
A South Korean protester burns a portrait of North Korean leader Kim Jong Un during an anti-North Korean rally in Seoul, South Korea, Friday, Aug. 21, 2015. The North leader on Friday declared his frontline troops in a \"quasi-state of war\" and ordered them to prepare for battle a day after the most serious confrontation between the rivals in years. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(44 of64)
A South Korean army soldier patrols at Unification Bridge near the border village of Panmunom in Paju, South Korea, Friday, Aug. 21, 2015. South Korea fired dozens of shells Thursday at rival North Korea after the North lobbed several rounds across the world\'s most heavily armed border and threatened to take further action unless Seoul ends its loudspeaker broadcasts. The North denied it fired any shots and warned of retaliation for what it called a serious provocation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(45 of64)
South Korean army soldiers walk on the way to returning to their base after a patrol, in Paju, south of the demilitarized zone that divides the two Koreas, South Korea, Friday, Aug. 21, 2015. South Korea fired dozens of shells Thursday at rival North Korea after the North lobbed several rounds across the world\'s most heavily armed border and threatened to take further action unless Seoul ends its loudspeaker broadcasts. The North denied it fired any shots and warned of retaliation for what it called a serious provocation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(46 of64)
South Korean children play as residents gather at a shelter in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Friday, Aug. 21, 2015. South Korea fired dozens of shells Thursday at rival North Korea after the North lobbed several rounds across the world\'s most heavily armed border and threatened to take further action unless Seoul ends its loudspeaker broadcasts. The North denied it fired any shots and warned of retaliation for what it called a serious provocation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(47 of64)
South Korean residents gather at a shelter in Yeoncheon, south of the demilitarized zone that divides the two Koreas, South Korea, Friday, Aug. 21, 2015. South Korea fired dozens of shells Thursday at rival North Korea after the North lobbed several rounds across the world\'s most heavily armed border and threatened to take further action unless Seoul ends its loudspeaker broadcasts. The North denied it fired any shots and warned of retaliation for what it called a serious provocation. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(48 of64)
A South Korean resident watches his mobile phone to read news as people gather at a shelter in the South Korean town of Yeoncheon where the shell fell Thursday, Aug. 20, 2015. South Korea\'s military fired dozens of shells Thursday at rival North Korea after the North lobbed a single artillery round at the border town, the South\'s Defense ministry said. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(49 of64)
South Korean residents gather at a shelter in the South Korean town of Yeoncheon where the shell fell Thursday, Aug. 20, 2015. South Korea\'s military fired dozens of shells Thursday at rival North Korea after the North lobbed a single artillery round at the border town, the South\'s Defense ministry said. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(50 of64)
A South Korean army soldier aims his weapon as passengers watch an anti-terror drill as part of Ulchi Freedom Guardian exercise, at Sadang Subway Station in Seoul, South Korea, Wednesday, Aug. 19, 2015. U.S. and South Korean forces launched Monday an annual joint military exercises, Ulchi Freedom Guardian, for a 12-day run to prepare for a possible North Korea\'s attack. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(51 of64)
South Korean army soldiers aim their weapons during an anti-terror drill as part of Ulchi Freedom Guardian exercise, at Sadang Subway Station in Seoul, South Korea, Wednesday, Aug. 19, 2015. U.S. and South Korean forces launched Monday an annual joint military exercises, Ulchi Freedom Guardian, for a 12-day run to prepare for a possible North Korea\'s attack. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(52 of64)
A South Korean policeman participates in an anti-terror drill as part of Ulchi Freedom Guardian exercise, at Sadang Subway Station in Seoul, South Korea, Wednesday, Aug. 19, 2015. U.S. and South Korean forces launched Monday an annual joint military exercises, Ulchi Freedom Guardian, for a 12-day run to prepare for a possible North Korea\'s attack. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(53 of64)
A South Korean army soldier passes by an advertising board during an anti-terror drill as part of Ulchi Freedom Guardian exercise, at Sadang Subway Station in Seoul, South Korea, Wednesday, Aug. 19, 2015. U.S. and South Korean forces launched Monday an annual joint military exercises, Ulchi Freedom Guardian, for a 12-day run to prepare for a possible North Korea\'s attack. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(54 of64)
South Korean firefighters wearing protective clothing chat as they wait to attend an anti-terror drill as part of Ulchi Freedom Guardian exercise, at Sadang Subway Station in Seoul, South Korea, Wednesday, Aug. 19, 2015. U.S. and South Korean forces launched Monday an annual joint military exercises, Ulchi Freedom Guardian, for a 12-day run to prepare for a possible North Korea\'s attack. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
South Korea Koreas Tension(55 of64)
A South Korean army soldier aim his weapon as employees of subway station watch an anti-terror drill as part of Ulchi Freedom Guardian exercise, at Sadang Subway Station in Seoul, South Korea, Wednesday, Aug. 19, 2015. U.S. and South Korean forces launched Monday an annual joint military exercises, Ulchi Freedom Guardian, for a 12-day run to prepare for a possible North Korea\'s attack. (AP Photo/Ahn Young-joon) (credit:ASSOCIATED PRESS)
SKOREA-NKOREA-MILITARY(56 of64)
South Korean policemen stand at the entrance to a bunker at a border village Yeoncheon near the Demilitarized Zone (DMZ) on August 22, 2015. South Korean troops stood at maximum alert on August 22, hours before the expiry of a North Korean ultimatum for Seoul to halt loudspeaker propaganda broadcasts across the border or face military action. AFP PHOTO / Ed Jones (Photo credit should read ED JONES/AFP/Getty Images) (credit:ED JONES via Getty Images)
SKOREA-NKOREA-MILITARY(57 of64)
South Korean policemen stand at a checkpoint near a bunker at a border village Yeoncheon near the Demilitarized Zone (DMZ) on August 22, 2015. South Korean troops stood at maximum alert on August 22, hours before the expiry of a North Korean ultimatum for Seoul to halt loudspeaker propaganda broadcasts across the border or face military action. AFP PHOTO / Ed Jones (Photo credit should read ED JONES/AFP/Getty Images) (credit:ED JONES via Getty Images)
SKOREA-NKOREA-MILITARY(58 of64)
A villager (L) smokes outside a bunker at a border village Yeoncheon near the Demilitarized Zone (DMZ) on August 22, 2015. South Korean troops stood at maximum alert on August 22, hours before the expiry of a North Korean ultimatum for Seoul to halt loudspeaker propaganda broadcasts across the border or face military action. AFP PHOTO / Ed Jones (Photo credit should read ED JONES/AFP/Getty Images) (credit:ED JONES via Getty Images)
SKOREA-NKOREA-MILITARY(59 of64)
A truck carrying South Korean soldiers passes through the border village of Yeoncheon near the Demilitarized Zone (DMZ) on August 22, 2015. South Korean troops stood at maximum alert on August 22, hours before the expiry of a North Korean ultimatum for Seoul to halt loudspeaker propaganda broadcasts across the border or face military action. AFP PHOTO / Ed Jones (Photo credit should read ED JONES/AFP/Getty Images) (credit:ED JONES via Getty Images)
SKOREA-NKOREA-MILITARY(60 of64)
A truck carrying South Korean soldiers passes members of the media (R) at the border village of Yeoncheon near the Demilitarized Zone (DMZ) on August 22, 2015. South Korean troops stood at maximum alert on August 22, hours before the expiry of a North Korean ultimatum for Seoul to halt loudspeaker propaganda broadcasts across the border or face military action. AFP PHOTO / Ed Jones (Photo credit should read ED JONES/AFP/Getty Images) (credit:ED JONES via Getty Images)
SKOREA-NKOREA-MILITARY(61 of64)
Anti-North Korean protesters hold banners at a checkpoint on the Unification Bridge leading to the Kaesong Industrial complex and North Korea near Paju in the Demilitarized Zone (DMZ) on August 22, 2015. South Korean troops stood at maximum alert on August 22, hours before the expiry of a North Korean ultimatum for Seoul to halt loudspeaker propaganda broadcasts across the border or face military action. AFP PHOTO / Ed Jones (Photo credit should read ED JONES/AFP/Getty Images) (credit:ED JONES via Getty Images)
Market Reactions As Kim Jong Un Orders Army To Be Ready For Combat After Koreas Trade Fire Along Border(62 of64)
A man looks at a television screen showing an image of Kim Jong Un, leader of North Korea, during a news broadcast on North Korea\'s exchange of fire with South Korea at Seoul Station in Seoul, South Korea, on Friday, Aug. 21, 2015. North Korean leader Kim Jong Un ordered his army to prepare for war after an exchange of fire with South Korea, ratcheting up the rhetoric as the latest skirmish between the two nations intensifies. Photographer: SeongJoon Cho/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
Market Reactions As Kim Jong Un Orders Army To Be Ready For Combat After Koreas Trade Fire Along Border(63 of64)
A member of the South Korean Army, left, and Navy, right look at a television screen showing a news broadcast on North Korea\'s exchange of fire with South Korea at Seoul Station in Seoul, South Korea, on Friday, Aug. 21, 2015. North Korean leader Kim Jong Un ordered his army to prepare for war after an exchange of fire with South Korea, ratcheting up the rhetoric as the latest skirmish between the two nations intensifies. Photographer: SeongJoon Cho/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
Market Reactions As Kim Jong Un Orders Army To Be Ready For Combat After Koreas Trade Fire Along Border(64 of64)
A foreign currency dealer walks past a monitor displaying the Korea Composite Stock Price Index (Kospi) in a dealing room at the Korea Exchange Bank headquarters in Seoul, South Korea, on Friday, Aug. 21, 2015. North Korean leader Kim Jong Un ordered his army to prepare for war after an exchange of fire with South Korea, ratcheting up the rhetoric as the latest skirmish between the two nations intensifies. Photographer: SeongJoon Cho/Bloomberg via Getty Images (credit:Bloomberg via Getty Images)
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