ICBM test contributes to continued deterrence
Second Lt. Chris Davis, 321st Missile Squadron deputy missile combat crew commander, and 1st Lt. Paul Lee, 321st MS missile combat crew commander, simulate key turns of the Minuteman III weapon system during a Simulated Electronic Launch-Minuteman test inside the launch control center at a missile alert facility in the 90th Missile Wing's missile complex, Neb., April 11, 2017. The 90th MW contributes to the nation's strategic defense by sustaining and operating 150 Minuteman III ICBMs and the associated launch facilities. A SELM test proves the ICBM weapon system's effectiveness in a safe and secure manner. (U.S. Air Force photo by Staff Sgt. Christopher Ruano)