Two MH-60S Knighthawks, assigned to the "Blackjacks" of Helicopter Sea Combat Squadron 21, maneuver around each other to transfer cargo from the fast-combat support ship USNS Rainier (T-AOE 7) during a replenishment at sea with the aircraft carrier USS Ronald Reagan (CVN 76). The Knighthawk is used for logistics support, vertical replenishment, search and rescue and naval special warfare support. Ronald Reagan is currently deployed to the U.S. 5th Fleet area of responsibility. Operations in the U.S. 5th Fleet area of operations are focused on reassuring regional partners of the United States' commitment to security, which promotes stability and global prosperity.