Diplomatic history of World War II in the Dunkirk evacuation in late May/early June 1940. Tens of thousands of tanks, trucks and artillery guns were left behind, as well as all of the radios, machine guns, rifles, tents, spare parts and other gear. The new Prime Minister Winston Churchill pledged that Britain would continue to fight for France's freedom, even if it must do so alone. After Mers el Kebir, Britain recognised Free France as its ally and the legitimate government of France. The United States maintained diplomatic relations with Vichy (until late 1942) and avoided recognition of de Gaulle's claim to be the one and
Battle of Britain on 24 May during the Battle of France by "Directive No. 13" which authorised the Luftwaffe "to attack the English homeland in the fullest manner, as soon as sufficient forces are available. This attack will be opened by an annihilating reprisal for English attacks on the Ruhr Basin." By the end of June 1940, Germany had defeated Britain's allies on the continent, and on 30 June the OKW Chief of Staff Alfred Jodl issued his review of options to increase pressure on Britain to agree to a negotiated peace. The first priority was to eliminate the RAF and gain air