U.S. Navy Petty Officer 1st Class Travis Dunbar, a Seabee steel worker, attached to Naval Mobile Construction Battalion 26, watches a HESCO being filled with dirt during Operation Paksazi Mojadad in the Shorabak District, Kandahar province, Afghanistan, March 10, 2011. Operation Paksazi Mojadad is a six-day long, joint operation to build an Afghan Border Police checkpoint in the Shorabak District.