An MH-60S Knighthawk, assigned to the "Blackjacks" of Helicopter Sea Combat Squadron 21, prepares to deliver cargo transferred from the fast-combat support ship USNS Rainier (T-AOE 7) on the aircraft carrier USS Ronald Reagan (CVN 76) during a replenishment at sea. RAS is conducted to supply ships with food, mail and supplies without pulling into port. Ronald Reagan is currently deployed to the U.S. 5th Fleet area of responsibility. Operations in the U.S. 5th Fleet are focused on reassuring regional partners of the United States' commitment to security, which promotes stability and global prosperity.