theater high altitude air defense (THAAD) system

high altitude-high opening (HAHO)

theater missile defense (TMD)

theater logistic system

High to Medium Air Defense (HIMAD)

high altitude

high altitude-low opening (HALO)

high- and low-altitude surveillance

high-altitude long-endurance (HALE)

high-altitude low-opening parachute technique (HALO)

high-altitude nuclear burst

surveillance, high- and low-altitude surveillance

high altitude arrival waypoint

very-high-altitude missile

high-altitude rocket barrage

high-altitude helipad

high altitude pseudo satellite (HAPS)

high-altitude drone

high-altitude long endurance unmanned aerial vehicle

high-altitude unmanned aerial vehicle

high-altitude takeoff

altitude-staggered antimissile defense

high pay-off target / high-payoff target (HPT)

high-burst / high burst (HB)

high road; high-road

high-power illuminator radar / high power illuminating radar (HIPIR)

high-performance / high performance

air defense artillery system

air defense guided missile system (AD GM sys)

integrated air defense system

man portable air defense system (MANPADS)

mobile air defense system

NATO Integrated Air defense System