A missile combat crew (MCC), is a team of highly trained specialists, often called missilemen, or missileers, staffing Intermediate Range and Intercontinental ballistic missile systems (IRBMs and ICBMs, respectively).[1] In the United States, personnel, officially coded as Nuclear and Missile Operations Officers (AFSC 13NX), of the United States Air Force, operate underground missile systems at launch control centers located throughout the country.[2] There are also a select few missileers that have the chance to become part of a Missile Combat Crew-Airborne (MCC-A) operating the Airborne Launch Control System which provides a survivable launch capability for the Minuteman ICBM force.[3] Crew size varies among the different missile systems, but the number is always greater than one, to abide by USSTRATCOM's two-man rule for positive control of nuclear weapons.