defense preparedness

civil and military preparedness

civil preparedness

disaster preparedness

disaster preparedness plan

emergency preparedness

medical preparedness

military preparedness

mobilization preparedness

terrorism preparedness

perimeter defense (all-around defense)

beach defense mine / beach-defense mine

active layered theatre (ballistic) missile defense (ALTBMD)

aerospace defense command

air defense (AD)

Air defense and Airspace Management Directorate (NATO)

air defense area

air defense artillery (ADA)

air defense artillery battalion

air defense artillery system

air defense brigade

air defense command

air defense commander (ADC)

air defense control center

air defense early warning

air defense emergency

air defense fire unit

air defense forces

air defense ground environment

air defense guided missile system (AD GM sys)

air defense materiel

air defense missile

air defense missile regiment