By any means necessary?

Winston Churchill was the leading anti-communist politician in Britain during the World War II ear. Yet, he asked the British government to support the communists as the Nazis invaded the Soviet Union. Why? He explained:
I have only one purpose, the destruction of Hitler, and my life is much simplified thereby. If Hitler invaded Hell I would make as least favorable reference to the Devil in the House of Commons.
Churchill understood the compromises he had to make to obtain his goals.