2nd Lts. Gregory Barrow, left, Air Force Vulnerability

2nd Lts. Gregory Barrow, left, Air Force Vulnerability Management program manager, and Ashley Greco, Airborne Warning and Control System program manager, perform first-aid tasks on Chris Vozella, 66th Logistics Readiness Squadron quality assurance evaluator and opposition force role player, during a readiness exercise at Hanscom Air Force Base, Mass., March 28. Various scenarios tested members’ knowledge of tasks associated with Ability to Survive and Operate, or ATSO, training in a simulated contested and degraded operational environment. (U.S Air Force photo by Todd Maki)