170323-N-OE873-277 ARABIAN SEA (March 23, 2017) The Military Sealift Command fleet replenishment oiler USNS Walter S. Diehl (T-AO 193), foreground, and the amphibious dock landing ship USS Comstock (LSD 45) conduct a vertical replenishment.(U.S. Navy photo by Mass Communication Specialist 3rd Class Asher Allen/Released)