In support of engineering civic action program Pacific Unity 11-4, U.S. Navy Seabees from Naval Mobile Construction Battalion 133 out of Gulfport, Miss., and U.S. Air Force Reserve Airmen from the 624th Civil Engineer Squadron out of Joint Base Pearl Harbor-Hickam, Hawaii, work with Vietnamese military and contractor personnel to make improvements on the Thach Dong medical clinic in Ha Tinh Province, Vietnam, Aug. 18, 2011. The operation included more than 60 U.S. and Vietnamese military members, contractors and support personnel, and showcased the potential of total force integration and multinational interoperability. (U.S. Air Force photo/Master Sgt. John Herrick)