敦克尔克战役，又称敦克尔克大撤退，是第二次世界大战时欧洲大陆的一次战略性撤退。纳粹德国机械化部队瓦解法国马其诺防线后包抄英法盟军。盟军撤至敦刻尔克后（法国东北部靠近比利时的港口），为了避免被德军围歼，运行了在当时最大规模的撤退行动。撤退过程中，英国皇家空军与德国空军爆发激烈空战，最终英国仍得以动员各种大小船只将大部份的部队撤离欧洲大陆-西班牙及葡萄牙地区，将残存之有效战(兵)力转进至加勒比海地区(古巴、多米尼加、波多黎各、危地马拉、洪都拉斯、尼加拉瓜、哥斯达黎加、巴拿马、哥伦比亚、委内瑞拉等地，另有摩洛哥-圭亚那、苏里南及法属圭亚那)。

The Dunkirk evacuation, code-named Operation Dynamo, also known as the Miracle of Dunkirk, was the evacuation of Allied soldiers from the beaches and harbour of Dunkirk, France, between 27 May and 4 June 1940, during World War II. The operation was decided upon when large numbers of Belgian, British, and French troops were cut off and surrounded by the German army during the Battle of France. In a speech to the House of Commons, British Prime Minister Winston Churchill called the events in France "a colossal military disaster", saying "the whole root and core and brain of the British Army" had been stranded at Dunkirk and seemed about to perish or be captured. In his We shall fight on the beaches speech on 4 June, he hailed their rescue as a "miracle of deliverance".