1. 这次作战行动的代号为“霸王行动”，它是历史上规模最大的海、陆、空三方力量集结的行动，目的是解放德国占领的欧洲西北部地区。

Code-named "Operation Overlord", it was the largest combined sea, air and land operation in history, north-west Europe from German occupation.