A launch control center (LCC), in the United States, is the main control facility for intercontinental ballistic missiles (ICBMs). A launch control center monitors and controls missile launch facilities. From a launch control center, the missile combat crew can monitor the complex, launch the missile, or relax in the living quarters. The LCC is designed to provide maximum protection for the missile combat crew and equipment vital to missile launch. Missile silos are common across the western United States, and over 450 missiles remain in US Air Force (USAF) service.