Anti-Submarine Warfare. Capability to detect, track, and engage submarines.

Combined gas turbine and gas turbine propulsion system where two gas turbines drive a single shaft via a combining gearbox.

Military action involving the use of electromagnetic spectrum to disrupt, deceive, or destroy enemy electronic systems.

The upper deck of an aircraft carrier, equipped for aircraft takeoff, landing, and maintenance operations.

Unmanned Aerial Vehicle: a remotely piloted or autonomous aircraft used for reconnaissance, surveillance, or combat missions without a human onboard.