noun
airborne early-warning aircraft; AWACS
Military/aviation term for an aircraft equipped with a radar system for early detection of threats. Often used in news or technical contexts.
早期警戒機が領空を監視している。
An airborne early-warning aircraft is monitoring the airspace.
Compound of 早期 (early stage) + 警戒 (warning, alert) + 機 (aircraft). A direct translation of the English concept.