Col. Tyler Schaff, 316th Wing and installation commander, speaks to Vietnam Veterans in attendance for Vietnam War Veterans Day, Joint Base Andrews, Md., March 29, 2021. March 29 marked the last day American troops departed Vietnam in 1973. The observance day was established in 2012 as the day to honor the millions of veterans who returned from war to their home country and did not receive assistance or respect. (U.S. Air Force photo by Staff Sgt. Cary Smith)