U.S. Navy Seabees, assigned to Naval Mobile Construction Battalion 26 board a UH-60 Black Hawk helicopter during Operation Karsha Pa Rago Kee in the Shamulzai district, Zabul province, Afghanistan, May 29, 2011. Operation Karsha Pa Rago Kee is a joint operation to build two Afghan Border Police checkpoints in the Shamulzaii District, Zabul province, Afghanistan.