Nazis invade Netherlands, Belgium, and Luxembourg (May 10). Chamberlain resigns as Britain's prime minister.Churchill takes over (May 10). Dunkerque evacuation.about 335,000 out of 400,000 Allied soldiers rescued from Belgium by British civilian and naval craft (May 26–June 3). Italy declares war on France and Britain; invades France (June 10). Germans enter Paris; city undefended (June 14).