Base to conduct night exercise Published Oct. 22, 2014 By 021014 FRANCIS E. WARREN AIR FORCE BASE, Wyo. -- The base will conduct an exercise that may involve simulated gunfire as well as the use of ground blast simulators during the evening of Oct. 22. Military installations conduct various exercises throughout the year in order to ensure mission and personnel readiness. People living on or around the base may see plumes of smoke and hear loud noises to include explosions from the simulated devices. The event is closed to the public in order for exercise participants to meet scenario objectives. For more information, contact the 90th Missile Wing Public Affairs Office at 307-773-3381.