Naval aircrewman Petty Officer 2nd Class Jeremy Thomas looks out the door of an SH-60F Seahawk assigned to the "Black Knights" of Helicopter Anti-Submarine Squadron 4 during its approach to the Nimitz-class aircraft carrier USS Ronald Reagan during a vertical replenishment with the Military Sealift Command fast combat support ship USNS Bridge. The Seahawk is a twin-engine helicopter used for anti-submarine warfare, search and rescue, drug interdiction, anti-ship warfare, cargo lift and special operations. Ronald Reagan is on a routine deployment, currently operating in the 3rd Fleet area of responsibility.