Translation guide
AWACS refers to an Airborne Warning and Control System, a military aircraft with radar for surveillance and command. In Japanese, it is typically referred to by the acronym or a descriptive term.
Referring to the AWACS aircraft or the system itself
An early warning and control aircraft has been deployed.
Shorter term meaning 'early warning aircraft', sometimes used when the control aspect is not emphasized.
The early warning aircraft conducted a patrol flight.