171018-N-XN177-053 YOKOSUKA, Japan (Oct. 18, 2017) The Royal Canadian Victoria-class long-range hunter-killer submarine HMCS Chicoutimi (SSK 879), right, passes the Japan Maritime Self-Defense Force icebreaker Shirase (AGB 5003) at Fleet Activities (FLEACT) Yokosuka. FLEACT Yokosuka provides, maintains and operates base facilities and services in support of the U.S. 7th Fleet's forward-deployed naval forces, 71 tenant commands and 24,000 military and civilian personnel. (U.S. Navy photo by Mass Communication Specialist 1st Class Peter Burghart/Released)