Reserve Citizen Airman Tech. Sgt. Shelby King, 507th Civil Engineer Squadron electrical systems NCO in charge (center), leads and mentors fellow Air Force Reserve electrical systems journeymen Senior Airman Steban Tijerina, 433rd CES, and Air National Guardsman Staff Sgt. Lawrence Ramirez, 149th CES, as they troubleshoot a power distribution panel for an environmental control unit April 30, 2020 at Joint Base San Antonio-Lackland, Texas. The Total Force Airmen are maintaining a tent city built to support basic military trainees and technical training students who need additional housing due to COVID-19 social distancing policies. (U.S. Air Force photo by Master Sgt. Kristian Carter)