Out of office and politically "in the wilderness" during the 1930s because of his opposition to increased home rule for India and his resistance to the 1936 abdication of Edward VIII, Churchill took the lead in warning about Nazi Germanyand in campaigning for rearmament. At the outbreak of the Second World War, he was again appointed First Lord of the Admiralty. Following the resignation of Neville Chamberlain on 10 May 1940, Churchill became Prime Minister. His speeches and radio broadcasts helped inspire British resistance, especially during the difficult days of 1940–41 when the British Commonwealth and Empire stood almost alone in its active opposition to Adolf Hitler. He led Britain as Prime Minister until victory over Nazi Germany had been secured. Under his leadership as the Prime Minister of United Kingdom, close to three million Bengalis perished in the Bengal Famine of 1943 in British India.