Displaced Iraqi civilians, who fled the Islamic State stronghold of Mosul, walk in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Displaced Iraqi civilians, who fled the Islamic State stronghold of Mosul, walk in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces carries his weapons during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces walk in the building during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces stands in a military vehicle during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Smoke rises from clashes during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces are seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Smoke rises from clashes during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





An Iraqi flag is seen on a military vehicle during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces gestures during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces stand on the roof of a building during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces help a wounded man, who fled the Islamic State stronghold of Mosul, in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces carry their weapons during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces carry their weapons during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces helps displaced Iraqi civilians, who fled the Islamic State stronghold of Mosul, in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A displaced man, who fled the Islamic State stronghold of Mosul, carries a woman in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A displaced Iraqi woman, who fled the Islamic State stronghold of Mosul, carries her baby in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Displaced Iraqi civilians, who fled the Islamic State stronghold of Mosul, walk in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Displaced Iraqi civilians, who fled the Islamic State stronghold of Mosul, take cover from snipers in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces stands in a military vehicle during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces are seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces are seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces gather during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces carries his weapon during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces sits during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces carries his weapon during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces carries his weapon during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 3, 2017. (Photo by Thaier Al-Sudani/Reuters)





A man cut the hair of a displaced people, who fled the Islamic State stronghold of Mosul, at Khazer camp, Iraq January 4, 2017. (Photo by Khalid al Mousily/Reuters)





A displaced Iraqi women, who fled the Islamic State stronghold of Mosul, makes bread at Khazer camp, Iraq, January 4, 2017. (Photo by Khalid al Mousily/Reuters)





Displaced Iraqi children, who fled the Islamic State stronghold of Mosul, play at Khazer camp, Iraq January 4, 2017. (Photo by Khalid al Mousily/Reuters)





Military vehicles of Iraqi rapid response forces are seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Smoke rises from clashes during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces holds his weapon during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces carry their weapons during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Military vehicles of Iraqi rapid response forces are seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces holds a flower during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces walk in the street during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A displaced man, who fled the Islamic State stronghold of Mosul, carries a child in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces take their position during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces take cover from snipers during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces take cover from snipers during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces sits in a military vehicle during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A member of Iraqi rapid response forces holds his weapon as civilians stand during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





An Iraqi rapid response forces military vehicle is seen in a street during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





An Iraqi rapid response forces military vehicle is seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A civilian takes a makeshift white flag on his home during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A civilian gives tea to Iraqi rapid response forces during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces stand next to a civilian car during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





A drone belonging to Islamic State militants is seen in the back of a vehicle during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 4, 2017. (Photo by Thaier Al-Sudani/Reuters)





Members of the Iraqi rapid response forces ride a military vehicle during a battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





A member of the Iraqi rapid response forces walks during a battle with the Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





A civilian hands out tea to members of the Iraqi rapid response forces during a battle with the Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





A member of the Iraqi rapid response forces sits in a military vehicle during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





A civilian speaks with a member of the Iraqi rapid response forces during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





A military vehicle of the Iraqi rapid response forces is seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





A military vehicle of the Iraqi rapid response forces is seen during battle with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





Members of the Iraqi rapid response forces clash with Islamic State militants in the Mithaq district of eastern Mosul, Iraq, January 5, 2017. (Photo by Khalid al Mousily/Reuters)





Displaced Iraqi people,who fled the Islamic State stronghold of Mosul, in a market at Khazer camp, Iraq, January 5, 2017. (Photo by Thaier Al-Sudani/Reuters)





A displaced Iraqi girl who fled the Islamic State stronghold of Mosul, runs at Khazer camp, Iraq, January 5, 2017. (Photo by Thaier Al-Sudani/Reuters)





Displaced Iraqi people, who fled the Islamic State stronghold of Mosul, are seen in a market at Khazer camp, Iraq, January 5, 2017. (Photo by Thaier Al-Sudani/Reuters)





Iraqi rapid response forces run across a street during battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





Members of the Iraqi rapid response forces gather during a battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





Members of the Iraqi rapid response forces gather during a battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





Military vehicles of the Iraqi rapid response forces are seen during a battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





An Iraqi army tank is seen during a battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





A military vehicle of the Iraqi special forces is seen during a battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





Iraqi army members ride in a military vehicle during a battle with Islamic State militants, in the village of Argoob, Iraq, January 6, 2017. (Photo by Ari Jalal/Reuters)





An Iraqi soldier looks at a wall painted in the colours of the black flag commonly used by Islamic State militants, in the village of Argoob, Iraq, January 6, 2017. (Photo by Ari Jalal/Reuters)





A member of Iraqi security forces take his position during a battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





A member of Iraqi rapid response forces is seen during a battle with Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





Civilians run for cover upon hearing the sound of clashes between Iraqi forces and Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





Children play during a battle between Iraqi forces and Islamic State militants in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





Iraqi rapid response forces fire mortar shells towards Islamic State positions in Wahda district of eastern Mosul, Iraq, January 6, 2017. (Photo by Alaa Al-Marjani/Reuters)





People gather at the site of a car bomb attack at a vegetable market in eastern Baghdad, Iraq January 8, 2017. (Photo by Wissm al-Okili/Reuters)





People gather at the site of a car bomb attack at a vegetable market in eastern Baghdad, Iraq January 8, 2017. (Photo by Wissm al-Okili/Reuters)





An Iraqi policeman inspects the site of a car bomb attack at a vegetable market in eastern Baghdad, Iraq January 8, 2017. (Photo by Wissm al-Okili/Reuters)





Wreckage is seen at the site of a car bomb attack at a vegetable market in eastern Baghdad, Iraq January 8, 2017. (Photo by Wissm al-Okili/Reuters)





Iraqi rapid response forces take a selfie picture outside a hospital damaged by clashes during a battle between Iraqi forces and Islamic State militants in the Wahda district of eastern Mosul, Iraq, January 8, 2017. (Photo by Alaa Al-Marjani/Reuters)





A fragment of an Assyrian-era relief shows the image of a genie holding a pine cone at the ancient site of Nimrud that was destroyed by Islamic State group militants near Mosul, Iraq. in this November 28, 2016 photo. In the 9th and 8th centuries BC, Nimrud was the capital of the Assyrian Empire, which burst out of Northern Mesopotamia to conquer much of the Mideast. The remains of its palaces, reliefs and temples were methodically blown up and torn to pieces by the Islamic State group in early 2015 in its campaign to erase history. (Photo by Maya Alleruzzo/AP Photo)





Iraqi Federal Police demonstrate their skills during a ceremony marking Police Day at the police academy in Baghdad, Iraq, Saturday, January 7, 2017. (Photo by Karim Kadim/AP Photo)





Iraqi Army soldiers inspect a suicide car bomb in a neighborhood recently liberated from Islamic State militants on the eastern side of Mosul, Iraq, Sunday, January 8, 2017. (Photo by Khalid Mohammed/AP Photo)