Sailors prepare cargo transportation equipment on the flight deck of the aircraft carrier USS George H.W. Bush during a vertical replenishment with USNS Robert E. Peary. U.S. Navy photo by MC3 Justin Wolpert
Sailors assigned to the deck department guide pallets from USNS Arctic to the hangar bay of USS Harry S. Truman during a replenishment-at-sea. U.S. Navy photo by MC3 Karl Anderson.
Sailors assigned to Cargo Afloat Rig Team 1 and civil service mariners aboard USNS Henry J. Kaiser prepare to transfer a 50-50 blend of advanced biofuel and traditional petroleum fuel to USS Princeton. U.S. Navy photo by MC2 Eva-Marie Ramsaran
The Military Sealift Command fleet replenishment oiler USNS Patuxent (T-AO 201), left, and the guided-missile cruiser USS Leyte Gulf (CG 58) prepare for a replenishment-at-sea.
MSC tanker USNS Lawrence H. Gianella sails through an icy channel past Mt. Erebus, the southernmost active volcano on Earth, on its way to deliver supplies to McMurdo Station, Antarctica.