counter-drone defence

International legion for the Defence of Ukraine (ILDU) / International Legion of Territorial Defence of Ukraine / Ukrainian Foreign Legion

drone swarm's counter-drone capabilities

maritime counter terrorism (MCT) / counter-terror measures

counter reconnaissance / counter-reconnaissance

active missile defence

antiaircraft defence

armed defence

Defence Intelligence (DI)

harbor defence

layered defence

leakage rate (missile defence)

line of defence

passive defence

right of self-defence

static defence

stubborn defence

suppression of antimissile defence

sustained defence

system of collective defence / security

territorial defence

Defence Forces (DF)

Ukraine Defence Contact Group (UCG)

NATO Defence Planning Process (NDPP)

home defence / forces / posting

harbour defence controlled mine

hasty defence position

hasty defense / hasty defence

all-round defence (ARD)

Kenya Defence Forces (KDF)

air defence destroyer

defence intelligence specialist

Australian Defence force academy