AWACS stands for Airborne Warning and Control System. It is a type of aircraft that is designed to provide airborne surveillance, command and control functions for military operations. AWACS aircraft are equipped with advanced radar systems and other communication equipment that allow them to detect and track aircraft and other targets at long distances, and to provide real-time information to ground-based commanders and other aircraft.
AWACS aircraft are typically large and heavily modified military transport planes, such as the Boeing E-3 Sentry used by the United States Air Force, or the NATO E-3A AWACS used by several European countries. These aircraft have a distinctive rotating radar antenna mounted on top of the fuselage, which allows them to scan a wide area and track multiple targets simultaneously.
AWACS aircraft are often used in military operations to provide early warning of potential threats, to coordinate and direct air traffic, and to manage the overall air campaign. They are also used in disaster response and humanitarian relief efforts to provide aerial surveillance and coordinate relief efforts.