Iraqi army soldiers march in a column behind an Iraqi M1 Abrams battle tank during a training exercise at Camp Taji, Iraq, March 10, 2015. Elements of the Iraqi army are currently being advised by the U.S. Army's 82nd Airborne Division in military fundamentals, tactical training and leadership so they are better prepared to deploy to northern Iraq to fight Da'ish. (U.S. Air Force photo by Senior Airman James Richardson/AFCENT/PAReviewed)