U.S. Army soldiers assigned to 1st Cavalry Division dismount off a CH-47 Chinook at Contingency Operating Site Kalsu July 30, 2011. 1st Cavalry Division is replacing 3rd Armored Cavalry Regiment as the dominate unit in Kalsu.  (Photo by: Spc. Nathan Franco)
<br>Unit: Joint Combat Camera Center Iraq
Nathan Franco
Taken on 30 July 2011
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