A "Fighter Squadron" is a military unit that operates fighter aircraft, which are designed for air-to-air combat. These squadrons are typically part of a larger air force and are responsible for defending airspace, engaging enemy aircraft, and providing support for ground forces. Each squadron usually consists of several aircraft, pilots, and support personnel. Fighter squadrons can be found in various air forces around the world, including the United States Air Force and the Royal Air Force. They often participate in training exercises, combat missions, and air patrols to maintain readiness and effectiveness in aerial warfare.