Unity Mitford summered at the Berghof where she continued to discuss a possible German-British alliance with Hitler, going so far as to supply lists of potential supporters and enemies. At the 1939 Bayreuth Festival, Hitler warned Unity and her sister Diana that war with Britain was inevitable within weeks and they should return home. Diana returned to England, while Unity chose to remain in Germany, though her family sent pleas for her to come home. After Britain's declaration of war on Germany on 3 September 1939, Unity was distraught. Diana Mitford told an interviewer in 1999: "She told me that if there
Hitler's British Girl sisters and her adoption of fascism as a way to rebel and make herself distinct. In 1932, Unity's elder sister Diana begins an affair with British fascist leader Oswald Mosley. Against her father's wishes, Unity meets with Mosley and, according to Oswald’s son, becomes a member of the party. The following year, Diana and Unity go to the Nuremberg rally as part of the British delegation, where Unity becomes obsessed with the Führer. Unity returns to Germany in the summer of 1934 and proceeds to stalk Hitler until she is eventually invited to his table at the Osteria Bavaria Restaurant