MIDEAST-CRISIS/IRAQ-IRAN-FALLUJA(01 of31)
Open Image ModalAn Iraqi Shi\'ite fighter fires artillery during clashes with Islamic State militants near Falluja, Iraq, May 29, 2016. REUTERS/Alaa Al-Marjani TPX IMAGES OF THE DAY (credit:Alaa Al-Marjani / Reuters)
MIDEAST-CRISIS/IRAQ-IRAN-FALLUJA(02 of31)
Open Image ModalA member of the Iraqi security forces fires artillery during clashes with Islamic State militants near Falluja, Iraq, May 29, 2016. REUTERS/Alaa Al-Marjani TPX IMAGES OF THE DAY (credit:Alaa Al-Marjani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(03 of31)
Open Image ModalIraqi security forces and Shi\'ite fighters fire artillery towards Islamic State militants near Falluja, Iraq, June 1, 2016. REUTERS/Alaa Al-Marjani (credit:Alaa Al-Marjani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(04 of31)
Open Image ModalIraqi army soldiers carry their weapons as they gather in the center of Falluja, Iraq, June 17, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(05 of31)
Open Image ModalAn Iraqi army soldiers carries his weapon in the center of Falluja, Iraq, June 17, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(06 of31)
Open Image ModalA military vehicle of the Iraqi army is seen in Falluja, Iraq, June 17, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(07 of31)
Open Image ModalSmoke rises from clashes between Iraqi security forces and Islamic State militants in Falluja, Iraq, June 17, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(08 of31)
Open Image ModalIraqi army soldiers carry their weapons as they gather in the center of Falluja, Iraq, June 17, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(09 of31)
Open Image ModalIraqi army soldiers walk with their weapons in center of Falluja, Iraq, June 17, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(10 of31)
Open Image ModalIraqi soldiers prepare to go to battle against Islamic State militants at the frontline in Falluja, Iraq, June 14, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(11 of31)
Open Image ModalIraqi soldiers eat lunch in Falluja, Iraq, June 14, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(12 of31)
Open Image ModalSmoke rises from clashes with Islamic State militants in Falluja, Iraq, June 14, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
Mideast Iraq Islamic State(13 of31)
Open Image ModalIn this Tuesday, June 14, 2016 photo, Iraqi soldiers observe the movements of Islamic State militants from a roof during fighting in Fallujah, Iraq. Fallujah has been locked in a cycle of conflict since 2003, when it emerged as a bastion of the insurgency against the Americans. Militant attacks and bombings were followed by sweeping arrest raids, which further stoked local grievances. In 2004, U.S. troops launched two massive assaults on the city, where they fought their bloodiest battles since Vietnam. (AP Photo/Anmar Khalil) (credit:ASSOCIATED PRESS)
Mideast Iraq Islamic State(14 of31)
Open Image ModalSmoke rises after airstrikes by U.S.-led coalition warplanes as Iraqi security forces advance their positions during heavy fight against Islamic State extremists in Fallujah, Iraq, Wednesday, June 15, 2016. Fallujah has been locked in a cycle of conflict since 2003, when it emerged as a bastion of the insurgency against the Americans. Militant attacks and bombings were followed by sweeping arrest raids, which further stoked local grievances. In 2004, U.S. troops launched two massive assaults on the city, where they fought their bloodiest battles since Vietnam. (AP Photo/Anmar Khalil) (credit:ASSOCIATED PRESS)
IRAQ-CONFLICT(15 of31)
Open Image ModalVehicles of the Iraqi counter terrorism forces are seen parked on street in Fallujah\'s southern Shuhada neighbourhood during an operation to retake areas from the Islamic State (IS) group on June 16, 2016.\nIraqi forces launched a vast offensive more than three weeks ago to retake Fallujah, which lies only 50 kilometres (30 miles) west of Baghdad and is one of the main bastions of the jihadists. / AFP / Jean Marc MOJON (Photo credit should read JEAN MARC MOJON/AFP/Getty Images) (credit:JEAN MARC MOJON via Getty Images)
IRAQ-CONFLICT(16 of31)
Open Image ModalSmoke billows during an operation by Iraqi government forces, backed by air support from the US-led coalition, in Fallujah\'s southern Shuhada neighbourhood to retake the area from the Islamic State (IS) group on June 15, 2016.\nThe Islamic State group battled Iraqi forces and held civilians hostage to defend its bastion of Fallujah, where three weeks of fighting has forced tens of thousands from their homes. Security forces have retaken significant parts of southern Fallujah over the past two weeks and are now attacking the jihadists in the Jbeil neighbourhood, officers said.\n\n / AFP / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images) (credit:AHMAD AL-RUBAYE via Getty Images)
IRAQ-CONFLICT(17 of31)
Open Image ModalIraqi government forces stand next to their armoured vehicles during an operation, backed by air support from the US-led coalition, in Fallujah\'s southern Shuhada neighbourhood to retake the area from the Islamic State (IS) group on June 15, 2016.\nThe Islamic State group battled Iraqi forces and held civilians hostage to defend its bastion of Fallujah, where three weeks of fighting has forced tens of thousands from their homes. Security forces have retaken significant parts of southern Fallujah over the past two weeks and are now attacking the jihadists in the Jbeil neighbourhood, officers said.\n\n / AFP / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images) (credit:AHMAD AL-RUBAYE via Getty Images)
IRAQ-CONFLICT(18 of31)
Open Image ModalMembers of Iraqi government forces stand next to their armoured vehicles as smoke billows from fighting during an operation, backed by air support from the US-led coalition, in Fallujah\'s southern Shuhada neighbourhood to retake the area from the Islamic State (IS) group on June 15, 2016.\nThe Islamic State group battled Iraqi forces and held civilians hostage to defend its bastion of Fallujah, where three weeks of fighting has forced tens of thousands from their homes. Security forces have retaken significant parts of southern Fallujah over the past two weeks and are now attacking the jihadists in the Jbeil neighbourhood, officers said.\n\n / AFP / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images) (credit:AHMAD AL-RUBAYE via Getty Images)
IRAQ-CONFLICT(19 of31)
Open Image ModalMembers of Iraqi government forces look at smoke billowing from fighting next to their armoured vehicle during an operation, backed by air support from the US-led coalition, in Fallujah\'s southern Shuhada neighbourhood to retake the area from the Islamic State (IS) group on June 15, 2016.\nThe Islamic State group battled Iraqi forces and held civilians hostage to defend its bastion of Fallujah, where three weeks of fighting has forced tens of thousands from their homes. Security forces have retaken significant parts of southern Fallujah over the past two weeks and are now attacking the jihadists in the Jbeil neighbourhood, officers said.\n\n / AFP / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images) (credit:AHMAD AL-RUBAYE via Getty Images)
MIDEAST-CRISIS/IRAQ(20 of31)
Open Image ModalIraqi security forces gather near Falluja, Iraq, May 31, 2016. REUTERS/Thaier Al-Sudani/File Photo (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ(21 of31)
Open Image ModalA member of Iraqi security forces gestures near Falluja, Iraq, May 31, 2016. REUTERS/Thaier Al-Sudani/File Photo (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(22 of31)
Open Image ModalIraqi security forces sit in military vehicles in the Nuaimiya suburb of Fallujah, Iraq, June 1, 2016. REUTERS/Alaa Al-Marjani (credit:Alaa Al-Marjani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(23 of31)
Open Image ModalIraqi security forces gather near Falluja, Iraq, May 31, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(24 of31)
Open Image ModalIraqi security forces members sit in a military vehicle near Falluja, Iraq, May 31, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(25 of31)
Open Image ModalSmoke rises from clashes near Falluja, Iraq, May 31, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(26 of31)
Open Image ModalIraqi security forces ride in a military vehicle near Falluja, Iraq, May 30, 2016. REUTERS/Alaa Al-Marjani TPX IMAGES OF THE DAY (credit:Alaa Al-Marjani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(27 of31)
Open Image ModalCivilians who fled their homes due to the clashes in Falluja, gather on the outskirts of Falluja, May 26, 2016. REUTERS/Stringer (credit:Osamah Waheeb / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA(28 of31)
Open Image ModalChildren who fled their homes due to the clashes in Falluja, pose for the photographer on the outskirts of Falluja, May 26, 2016. REUTERS/Stringer (credit:Osamah Waheeb / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA-SISTANI(29 of31)
Open Image ModalSmoke rises from clashes near Falluja, Iraq, May 25, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
MIDEAST-CRISIS/IRAQ-FALLUJA-SISTANI(30 of31)
Open Image ModalShi\'ite fighters and Iraqi security forces advance towards Falluja, Iraq, May 25, 2016. REUTERS/Thaier Al-Sudani (credit:Thaier Al-Sudani / Reuters)
Mideast Iraq Islamic State(31 of31)
Open Image ModalIraq\'s elite counterterrorism forces enter Shuhada neighborhood in Fallujah, Iraq, Sunday, June 5, 2016. Iraqi forces are pushing their way into the city to retake it from Islamic State militants. (AP Photo/Osama Sami) (credit:ASSOCIATED PRESS)