Maj. Gen. John Gordy, U.S. Expeditionary Center commander, right, receives a briefing from Staff Sgt. Malcolm Mullen, 921st Contingency Response Squadron security forces, during his visit to Travis A­ir Force Base, California, May 21, 2019. During the visit, Airmen briefed the capabilities of their unit and showcased innovation projects. The 621st CRW is a unique bicoastal unit highly-specialized in training and rapidly deploying personnel to quickly open airfields and establish, expand, sustain and coordinate air mobility operations. (U.S. Air Force photo by Tech. Sgt. Liliana Moreno)