adopt a defensive attitude

attitude-and-heading reference system / attitude and heading reference system (AHRS)

assume а defensive attitude

assume a defensive / assume the defensive

adopt

adopt a course

adopt a formation

artificial horizon (gyro horizon/ attitude indicator)

attitude

attitude control

attitude control system

lateral attitude

target attitude

attitude of the vehicle

firing position / firing attitude

attitude indicator

attitude monitor

attitude stabilized antenna

attitude-and-heading reference system (AHRS)

heading and attitude reference system

replacement attitude and heading reference system

artificial horizon / attitude indicator, gyro-horizon

attitude indicator / artificial horizon, gyro-horizon

gyro-horizon / artificial horizon, attitude indicator

strapdown attitude heading reference system

attitude and heading reference system (AHRS)

attitude

assuming a defensive

close defensive fire

close-in defensive fire

defensive area

defensive belt / line

defensive electronic warfare