Members of 321st Contingency Response Squadron drive forklifts down the flightline at Alpena Combat Readiness Training Center, Mich., to help incoming aircraft unload cargo May 16, 2021. Members of the 321st CRS and arriving aircraft are participating in Exercise Mobility Guardian 2021, consisting of 13 days of intense operations with complex threats to ready Air Mobility Command forces for any mission in contested, degraded and operationally-limited environments. (U.S. Air Force photo by Tech. Sgt. Kentavist P. Brackin)
