An Air Force Base is a military installation used by the United States Air Force and other air forces around the world. These bases serve various functions, including training pilots, maintaining aircraft, and conducting operations. They often have runways, hangars, and facilities for personnel. Air Force bases can be found in many locations, both domestically and internationally. They play a crucial role in national defense and support missions related to air power. Some well-known bases include Joint Base Andrews and Nellis Air Force Base, which are essential for training and operational readiness.