caption: Airmen from the 14th Medical Group walk in a line into the simulated battlefield during the Tactical Combat Casualty Care Course in the Walker Center Feb. 23, 2020, on Columbus Air Force Base Miss. In the replicated training Airmen were given rubber guns and full body gear to protect the 'wounded' and other medics while treating them. (U.S. Air Force photo by <PERSON> <PERSON>)