150414-N-EC444-001 GULF OF GUINEA Embarked security team Sailors from Coastal Riverine Squadron 4 participate in an Enlisted Expeditionary Warfare Specialist qualification board aboard the Military Sealift Command’s joint high-speed vessel USNS Spearhead April 13, 2015. Spearhead is on a scheduled deployment to the U.S. 6th Fleet area of operations in support of the international collaborative capacity-building program Africa Partnership Station.