REPLENISHMENT-AT-SEA The Military Sealift Command fleet replenishment oiler USNS Yukon steams alongside the Nimitz-class aircraft carrier USS Ronald Reagan during a replenishment-at-sea, March 26, 2008. The Ronald Reagan Carrier Strike Group is conducting Composite Training Unit Exercise in preparation for an upcoming deployment. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 128455-H-BEV16-187.jpg Photo Gallery