U.S. Air Force Lt. Col. Joseph W. Leonard, 177th Fighter Wing Maintenance Group commander, poses for a photo in front of a monument at the historic Antietam National Battlefield in Sharpsburg, Maryland, June 24, 2019. Antietam is the site of a major battle of the Civil War and the bloodiest day of any war ever fought in American history. The U.S. Army War College's Distance Class of 2020 student body of almost 400 traveled to Washington D.C. to meet with senior leaders at federal agencies and foreign embassies in Washington D.C., and examined senior leadership at historic battle sites like Gettysburg and Antietam. (Courtesy photo by Lt. Col. Joseph Leonard)