150306-N-RB579-071 LUANDA, Angola (March 6, 2015) U.S. Embassy defense attaché Col. Matthew Sousa, left, speaks with Angolan military officers aboard the Military Sealift Command joint high-speed vessel USNS Spearhead (JHSV 1). Spearhead is on a scheduled deployment to the U.S. 6th Fleet area of responsibility in support of the international collaborative capacity-building program Africa Partnership Station. (U.S. Navy photo by Mass Communication Specialist 1st Class Joshua Davies/Released)