Unternehmen Paula (Undertaking or Operation Paula) is the German codename given for the Second World War Luftwaffe offensive operation to destroy the remaining units of the Armée de l'Air (ALA), or French Air Force during the Battle of France in 1940. On 10 May the German armed forces (Wehrmacht) began their invasion of Western Europe. By 3 June, the British Army had withdrawn from Dunkirk and the continent in Operation Dynamo, the Netherlands and Belgium had surrendered and most of the formations of the French Army were disbanded or destroyed. To complete the defeat of France, the Germans undertook a second phase operation, Fall Rot (Case Red), to conquer the remaining regions. In order to do this, air supremacy was required. The Luftwaffe was ordered to destroy the French Air Forces, whi