You referring to when he had the French Vichy fleet sunk? Was that aimed at the US?
Churchill's fun. Probably saved the West by rallying the Brits, foresaw the Cold War. On the other hand incredibly bumbling at Gallipoli and completely wrong about Gandhi.
Back on the topic of aliens, Reagan has one of the more interesting references:
I occasionally think how quickly our differences worldwide would vanish if we were facing an alien threat from outside this world. And yet, I ask you, is not an alien force already among us? What could be more alien to the universal aspirations of our peoples than war and the threat of war?
https://www.youtube.com/watch?v=Ag44dRO8LEA
http://www.smithsonianmag.com/smart-news/reagan-and-gorbache...