190517-N-AE894-0174 BOSTON (May 17, 2019) USS Constitution is tugged out to Fort Independence on Castle Island during �Old Ironsides' underway commemorating the Vietnam War. The event is in concert with the National Vietnam War Commemoration, committed to highlighting the service of U.S,. Armed Forces during the Vietnam War and to thank and honor veterans and their families, and our allies. (U.S. Navy Photo by Seaman Donovan Keller/Released)