YUKON OPERATION The fleet replenishment oiler USNS Yukon steams next to the aircraft carrier USS George Washington during a replenishment in the Pacific Ocean, Sept. 18, 2013. The George Washington was supporting maritime security operations and theater security cooperation efforts in the U.S. 7th Fleet area of responsibility. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 549797-K-ACN45-927.jpg Photo Gallery