长驱直入

chángqūzhírù

长驱直入 — chángqūzhírù

1. to march straight in unchallenged (military); (fig.) to push deep into the heart of something; to flood in

   敌军不战而退，我军长驱直入，一举占领了敌都。 díjūn bùzhànértuì wǒjūn zhǎngqūzhírù yījǔ zhànlǐng le dí dōu — The enemy retreated without fighting, and our forces marched straight in and captured the enemy capital in one move.