noun
ballistic missile defense
Military and policy term for systems designed to intercept and destroy incoming ballistic missiles.
日本は弾道ミサイル防衛の強化を進めている。
Japan is advancing the strengthening of its ballistic missile defense.
弾道ミサイル防衛システムの配備が議論されている。
The deployment of a ballistic missile defense system is being discussed.
Compound of 弾道 (ballistic trajectory), ミサイル (missile), and 防衛 (defense). A modern technical term with no historical derivation beyond its components.