advanced surveillance drone

surveillance, high- and low-altitude surveillance

surveillance, under surveillance

jet-propelled surveillance drone

drone aerial surveillance

drone surveillance aircraft

target surveillance drone

surveillance drone

air surveillance drone

air surveillance drone system

airborne surveillance drone

Army/Navy universal surveillance drone

battlefield surveillance drone

combat surveillance drone

surveillance drone system

TV-surveillance drone

drone war (world’s first drone war)

drone field of view (drone FOV)

drone swarm attack / drone swarming attack

drone swarm's counter-drone capabilities

hobby drone (hobby grade drone)

one-way attack drone (OWA drone)

advanced active homing technique

advanced capabilities (ADCAP) torpedo

advanced conventional weapons systems

advanced course

advanced data link capability

advanced data processing equipment

advanced distributed learning (ADL)

advanced explosive ordnance disposal robotic systems AEODRS

advanced individual training (AIT)

advanced intercontinental missile system

advanced logistic support site (ALSS)