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
Unity Mitford forward among the sisters and in the family, she decided that she was going to form a personality against everything". It has been speculated that Unity turned to Nazism as a way to distinguish herself within the family. As Dalley states: "I think the desire to shock was very important, it was the way that she made herself special. When she discovered Nazism and discovered that it was a fantastic opportunity to shock everybody in England she’d discovered the best tease of all." Her younger sister, Jessica, with whom she shared a bedroom, was a dedicated communist. The two drew