Sir Oswald Mosley was a British politician and the founder of the British Union of Fascists in the 1930s. Born in 1896, he initially served as a member of the Labour Party and later the Conservative Party before establishing his own political movement. Mosley was known for his charismatic speeches and controversial views, which included strong nationalist and anti-communist sentiments. His political career was marked by increasing extremism, particularly during the rise of fascism in Europe. Mosley's activities drew significant public attention and opposition, especially during the Battle of Cable Street in 1936, where anti-fascist groups clashed with his supporters. He was interned during World War II due to his pro-fascist stance and remained a controversial figure in British history.