Escadron de Chasse 2/30 Normandie-Niemen Air Base (BA 118). During the rallying of général Charles de Gaulle through the Appeal of 18 June 1940 inviting Frenchmen to join him in London, some went on to Great-Britain in order to continue the fight with the Allies. Great-Britain became the most important « Free French military base and rallying point. Following the rupture of the Molotov–Ribbentrop Pact by Operation Barbarossa on June 22, 1941, representatives of Vichy were declared as Persona non grata by the Soviet Authorities and were asked to return to France. Colonel Charles Luguet, the air attaché of the Vichy Government in Moscow, changed
Battle of Britain alone was insufficient; the German naval staff had already produced a study (in 1939) on the possibility of an invasion of Britain and concluded that it also required naval superiority. The Luftwaffe said invasion could only be "the final act in an already victorious war." Hitler first discussed the idea of an invasion at a 21 May 1940 meeting with Grand Admiral Erich Raeder, who stressed the difficulties and his own preference for a blockade. OKW Chief of Staff Jodl's 30 June report described invasion as a last resort once the British economy had been damaged and the Luftwaffe had