Isaac Hampton, Fort Lee quartermaster historian, discusses African American history during the Vietnam War at the brown bag lunch series at the U.S. Army Transportation Museum at Joint Base Langley-Eustis, Virginia, Feb. 13, 2019. The lunch series will follow monthly observances and March’s topic will explore how the U.S. Army culture has shifted through time from the hidden warriors of the Revolutionary and Civil War to today’s female frontline troops. (U.S. Air Force photo by Senior Airman Derek Seifert)