U.S. Soldiers assigned to the 121st Brigade Support Battalion, 4th Brigade Combat Team, 1st Armored Division, work to recover their Mine Resistant Ambush Protected vehicle after a simulated hit with an improvised explosive device during a joint training mission with soldiers from the 10th Iraqi Army Division on Contingency Operating Base Adder, Dhi Qar, Iraq, Dec. 9. The training mission was pertaining to convoy operations while experiencing a blast from an improvised explosive device.