171214-N-LY160-0102 PEARL HARBOR, Hawaii (July 11, 2017) Vice Adm. John D. Alexander, commander, U.S. 3rd Fleet, tours the control room aboard the Virginia-class fast-attack submarine USS Illinois (SSN 786) at Joint Base Pearl Harbor-Hickam. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael H. Lee/Released)