LANGLEY AIR FORCE BASE, Va. -- Staff Sgt. Alexis Lewis, 1st Medical Group medical technician, provides simulated medical care for simulated patient Tech. Sgt. Timothy Knowls, 1st Fighter Wing Plans and Programs noncommisioned officer in charge during a major accident response exercise here June 11. The MARE was conducted to train base personnel on emergency response procedures and to establish working agreements with local civilian agencies. (U.S. Air Force photo/Senior Airman Barry Loo)