FILE - In this April 17, 2019, file photo, Iraqi soldiers chant slogans against IS while Australian and New Zealand coalition forces participate in a training mission with Iraqi army soldiers at Taji Base, north of Baghdad, Iraq. In a quest to root out Islamic State group hideouts over the summer, Iraqi forces on the ground cleared nearly 90 villages across a notoriously unruly northern province. But the much-touted operation still relied heavily on U.S. intelligence, coalition flights and planning assistance. (AP Photo/Hadi Mizban, File)

FILE - In this Feb. 23, 2017 file photo, U.S. Army soldiers stand outside their armored vehicle on a joint base with the Iraqi army, south of Mosul, Iraq. In a quest to root out Islamic State group hideouts over the summer, Iraqi forces on the ground cleared nearly 90 villages across a notoriously unruly northern province. But the much-touted operation still relied heavily on U.S. intelligence, coalition flights and planning assistance. (AP Photo/ Khalid Mohammed, File)

FILE - In this March 27, 2020 file photo, U.S. soldiers stand guard during the hand over ceremony of Qayyarah Airfield, Iraqi Security Forces, in the south of Mosul, Iraq. In a quest to root out Islamic State group hideouts over the summer, Iraqi forces on the ground cleared nearly 90 villages across a notoriously unruly northern province. But the much-touted operation still relied heavily on U.S. intelligence, coalition flights and planning assistance. (AP Photo/Ali Abdul Hassan, File)