A counterattack or comeback launched in response to an attack or setback (used in military, sports, and figurative contexts).
敵の攻撃に対して逆襲に出た。
They launched a counterattack against the enemy's assault.
試合終盤にチームが逆襲を開始した。
In the late stage of the match, the team began its comeback.
主人公が逆襲して物語が動き始める。
The protagonist strikes back and the story begins to move forward.