Mideast Yemen(01 of24)
Open Image ModalMen uncover the body of a girl under the rubble of a house destroyed by a Saudi-led airstrike in Sanaa, Yemen, Thursday, July 2, 2015. The United Nations on Wednesday declared its highest-level humanitarian emergency in conflict-torn Yemen, where over 80 percent of the population needs assistance. U.N. officials have said the Arab world\'s most impoverished country is now a step away from famine. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
APTOPIX Mideast Yemen(02 of24)
Open Image ModalMen uncover the body of a girl under the rubble of a house destroyed by a Saudi-led airstrike in Sanaa, Yemen, Thursday, July 2, 2015. The United Nations on Wednesday declared its highest-level humanitarian emergency in conflict-torn Yemen, where over 80 percent of the population needs assistance. U.N. officials have said the Arab world\'s most impoverished country is now a step away from famine. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(03 of24)
Open Image ModalMen search for survivors under the rubble of a house destroyed by a Saudi-led airstrike in Sanaa, Yemen, Thursday, July 2, 2015. The United Nations on Wednesday declared its highest-level humanitarian emergency in conflict-torn Yemen, where over 80 percent of the population needs assistance. U.N. officials have said the Arab world\'s most impoverished country is now a step away from famine. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(04 of24)
Open Image ModalNeighbors, seen at left, sit on the rubble of a house destroyed by a Saudi-led airstrike in Sanaa, Yemen, Thursday, July 2, 2015. The United Nations on Wednesday declared its highest-level humanitarian emergency in conflict-torn Yemen, where over 80 percent of the population needs assistance. U.N. officials have said the Arab world\'s most impoverished country is now a step away from famine. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
APTOPIX Mideast Yemen(05 of24)
Open Image ModalSmoke rises after a Saudi-led airstrike in Sanaa, Yemen, Thursday, July 2, 2015. The United Nations on Wednesday declared its highest-level humanitarian emergency in conflict-torn Yemen, where over 80 percent of the population needs assistance. U.N. officials have said the Arab world\'s most impoverished country is now a step away from famine. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(06 of24)
Open Image ModalA house destroyed by a Saudi-led airstrike in Sanaa, Yemen, Thursday, July 2, 2015. The United Nations on Wednesday, July 1 declared its highest-level humanitarian emergency in conflict-torn Yemen, where over 80 percent of the population need assistance. U.N. officials have said the Arab world\'s most impoverished country is now a step away from famine. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(07 of24)
Open Image ModalPeople stand amid wreckage of a vehicle at the site of a car bomb attack in Sanaa, Yemen, Tuesday, June 30, 2015. The explosion occurred near a military hospital in the Yemeni capital on Monday, causing dozens of casualties including civilians, security officials said. The Islamic State\'s Sanaa Division claimed responsibility on Twitter for detonating the parked car bomb, according to the SITE Intelligence Group monitoring service. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
APTOPIX Mideast Yemen(08 of24)
Open Image ModalYemeni children receive free food donated by Yemeni volunteers during the holy month of Ramadan, in Sanaa, Yemen, Friday, June 26, 2015. Muslims throughout the world are marking the month of Ramadan, the holiest month in the Islamic calendar during which devotees fast from dawn till dusk.(AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(09 of24)
Open Image ModalPeople stand amid wreckage of a car at the site of a car bomb attack in Sanaa, Yemen, Tuesday, June 30, 2015. The explosion occurred near a military hospital in the Yemeni capital on Monday, causing dozens of casualties including civilians, security officials said. The Islamic State\'s Sanaa Division claimed responsibility on Twitter for detonating the parked car bomb, according to the SITE Intelligence Group monitoring service. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
YEMEN-CONFLICT(10 of24)
Open Image ModalA Yemeni fighter loyal to exiled President Abedrabbo Mansour Hadi walks on a damaged street in the Dar Saad suburb of the southern city of Aden on July 2, 2015. Fighting rage between rebels and pro-government fighters in Yemen\'s battleground southern port of Aden, a day after the United Nations declared its highest level of humanitarian emergency in the war-torn country. AFP PHOTO / SALEH AL-OBEIDI (Photo credit should read SALEH AL-OBEIDI/AFP/Getty Images) (credit:SALEH AL-OBEIDI via Getty Images)
YEMEN-CONFLICT(11 of24)
Open Image ModalSmoke billows following an air-strike by the Saudi-led coalition on a weapons depot, currently controlled by Yemeni Shiite Huthi rebels, on July 2, 2015 in the capital Sanaa. Fighting raged in Yemen\'s battleground southern port of Aden, a day after the United Nations declared its highest level of humanitarian emergency in the war-torn country. AFP PHOTO / MOHAMMED HUWAIS (Photo credit should read MOHAMMED HUWAIS/AFP/Getty Images) (credit:MOHAMMED HUWAIS via Getty Images)
SAUDI-YEMEN-UN-CONFLICT(12 of24)
Open Image ModalA Yemeni woman holds a placard as she demonstrates upon the arrival for a meeting of UN\'s envoy to Yemen, Ismail Ould Cheikh Ahmed, and Yemeni Foreign Minister, Riad Yassin, on July 1, 2015 in the Saudi capital Riyadh. Rebel fire on a residential district of Yemen\'s second city Aden killed more than 30 civilians, as the UN declared its highest level humanitarian emergency in the war-torn country. AFP PHOTO / FAYEZ NURELDINE (Photo credit should read FAYEZ NURELDINE/AFP/Getty Images) (credit:FAYEZ NURELDINE via Getty Images)
YEMEN-CONFLICT-OIL(13 of24)
Open Image ModalYemeni fighters of the southern separatist movement and firefighters attempt to extinguish a flame at an oil refinery in the port city of Aden on June 27, 2015, following shelling by Shiite Huthi rebels. Fire erupted at Aden\'s oil refinery when rebels shelled the nearby port to prevent a Qatari ship carrying aid for Yemen\'s devastated second city from docking, officials told AFP. AFP PHOTO / SALEH AL-OBEIDI (Photo credit should read SALEH AL-OBEIDI/AFP/Getty Images) (credit:SALEH AL-OBEIDI via Getty Images)
YEMEN-CONFLICT-OIL(14 of24)
Open Image ModalYemeni fighters of the southern separatist movement and firefighters attempt to extinguish a flame at an oil refinery in the port city of Aden on June 27, 2015, following shelling by Shiite Huthi rebels. Fire erupted at Aden\'s oil refinery when rebels shelled the nearby port to prevent a Qatari ship carrying aid for Yemen\'s devastated second city from docking, officials told AFP. AFP PHOTO / SALEH AL-OBEIDI (Photo credit should read SALEH AL-OBEIDI/AFP/Getty Images) (credit:SALEH AL-OBEIDI via Getty Images)
YEMEN-CONFLICT(15 of24)
Open Image ModalA Yemeni man inspects the rubble of a destroyed building in Aden\'s suburbs on June 24, 2015 after rebel forces and loyalist fighters were locked in fierce fighting. Warplanes from the Saudi-led Arab coalition have launched heavy raids against rebel positions in seven Yemeni provinces, according to witnesses and military sources. AFP PHOTO / SALEH AL-OBEIDI (Photo credit should read SALEH AL-OBEIDI/AFP/Getty Images) (credit:SALEH AL-OBEIDI via Getty Images)
Mideast Yemen(16 of24)
Open Image ModalPeople search for survivors under the rubble of houses destroyed by Saudi airstrikes in the old city of Sanaa, Yemen, Friday, June 12, 2015. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(17 of24)
Open Image ModalPeople search for survivors under the rubble of houses destroyed by Saudi airstrikes in the old city of Sanaa, Yemen, Friday, June 12, 2015. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(18 of24)
Open Image ModalShiite rebels known as Houthis carry the coffin of a fellow Houthi who was killed in a Saudi-led airstrike, during his funeral in Sanaa, Yemen, Sunday, June 7, 2015. A series of pre-dawn Saudi-led airstrikes on Sunday targeted the headquarters of Yemen\'s armed forces in the rebel-held capital, killing tens of people, security and hospital officials said. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(19 of24)
Open Image ModalPeople gather around the rubble of houses destroyed by a Saudi-led airstrike on the outskirts of Sanaa, Yemen, Wednesday, June 3, 2015. The Saudi-led coalition launched new strikes on Houthi positions in Sanaa, rocking residential areas. The strikes, as well as Saudi-led air and sea blockade, have caused food, water and medicine shortages, sparking a humanitarian crisis in the country. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
YEMEN-CONFLICT(20 of24)
Open Image ModalYemenis inspect the wreckage of a vehicle outside the Kobbat al-Mehdi Shiite mosque in the capital Sanaa on June 20, 2015, after a car bomb targeting the area killed two people. The explosion in Sanaa, controlled by Iran-backed Shiite Huthi rebels, went off outside the mosque as Shiite Muslims emerged from midday prayers, witnesses and security sources said. AFP PHOTO / MOHAMMED HUWAIS (Photo credit should read MOHAMMED HUWAIS/AFP/Getty Images) (credit:MOHAMMED HUWAIS via Getty Images)
YEMEN-CONFLICT(21 of24)
Open Image ModalYemenis walk on June 18, 2015 near the wreckage of cars after five simultaneous bombings targeting Shiite mosques and offices hit the Yemeni capital Sanaa the previous night killing at least 31 people. The Islamic State group, a Sunni Muslim radical group, said the attacks were in \'revenge\' against the Shiite Huthis, who have overrun Sanaa and much of the Sunni majority country and whom it considers to be heretics. AFP PHOTO / MOHAMMED HUWAIS (Photo credit should read MOHAMMED HUWAIS/AFP/Getty Images) (credit:MOHAMMED HUWAIS via Getty Images)
Mideast Yemen(22 of24)
Open Image ModalPeople search for survivors under the rubble of houses destroyed by Saudi airstrikes in the old city of Sanaa, Yemen, Friday, June 12, 2015. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(23 of24)
Open Image ModalPeople search for survivors under the rubble of houses destroyed by Saudi airstrikes in the old city of Sanaa, Yemen, Friday, June 12, 2015. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)
Mideast Yemen(24 of24)
Open Image ModalMen stand guard on the rubble of a house destroyed by a Saudi-led airstrike on the outskirts of Sanaa, Yemen, Tuesday, June 9, 2015. A series of airstrikes from the Saudi-led military coalition also targeted Yemen\'s Defense Ministry building, which is under control of Shiite rebels who control the capital, Sanaa, officials said. (AP Photo/Hani Mohammed) (credit:ASSOCIATED PRESS)