enemy attack; enemy raid
Refers to an attack or raid by enemy forces, often used in military or historical contexts.
敵襲に備えて警戒を強めた。
They heightened their alert against enemy attacks.
夜
They came under enemy attack before dawn.
Compound of 敵 (enemy) and 襲 (attack, raid). The reading しゅう is the on'yomi of 襲.