Sir Oswald Mosley Returns to Politics. Sir Oswald Mosley speaking during the meeting at Bethnal Green. Sir Oswald Mosley formerly Leader of the British Union of Fascists, broke a three year silence when he addressed a meeting of several hundreds of us Union Movement supporters at Wilmot St, School, Bethnal Green, east London. Sir Oswald Mosley, now 58 years of age, was making his first "political" appearance since February 1951 and its is understood that he now plans to return to the political arena. February 11, 1954.