The evacuation of civilians from the Channel Islands in 1940 was an organised, partial, nautical evacuation of Crown dependencies in the Channel Islands, primarily from Jersey, Guernsey, and Alderney to Great Britain during World War II. The evacuation occurred in phases, starting with school aged children, their teachers, and mother volunteers. The islands and the British military began the evacuation following the Allies' loss in the Battle of France, after which the British Army withdrew from the islands.