190116-N-SM577-0076 BOSTON (Jan. 16, 2019) USS Constitution’s 75th Commanding Officer, Cmdr. Nathaniel R. Shick, conducts a tour of ‘Old Ironsides’ for Capt. Paul C. Spedero, Jr., Chief of Staff, Director, Navy Staff. USS Constitution, America’s Ship of State, is the Oldest Commissioned Warship Afloat in the World. (U.S. Navy photo by Mass Communication Specialist 3rd Class Casey Scoular/Released)