U.S. Air Force Capt. Erin Walsh, 380th Expeditionary Aircraft Maintenance Squadron officer in charge of the KC-10 Extenders, receives on-the-job training from Staff Sgt. Cody Dillon, 380th EAMXS, while servicing the lavatory of an Extender at Al Dhafra Air Base, United Arab Emirates, July 9, 2021. Walsh, whose experience previously was limited to fighter aircraft, is learning to service the Extender’s lavatory as a means to understand and appreciate what her maintainers go through to accomplish the mission. (U.S. Air Force photo by Master Sgt. Wolfram M. Stumpf)