An MH-60S Knighthawk assigned to the "Blackjacks" of Helicopter Sea Combat Squadron 21, transports cargo during a replenishment at sea evolution with the aircraft carrier USS Ronald Reagan and the fast combat-support ship USNS Rainier. 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 operations. 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.