Winston Churchill spoke a version of French and actually spoke to the people of France on the BBC following the fall of France in c1940. It was about the same time that he made his famous "Fight them on the Beaches" speech, sticking up two firm fingers into Hitlers nostrils. V for Victory.
Winston Churchill speaks to the joint houses of Congress 1941 http://rightwingnews.com/speeches/church… As for Margaret Thatcher, she was a scientist in her own right, and may very well have spoken some French - a Uni educated person of considerable skill. She is known to dislike the Germans and may therefore have prefered speaking French. Franklin D Roosevelt - not sure if he could speak French or any other language apart from the high quality of American English which he employed to excellent effect.
Nothing comes close to such as "a date which will live in infamy" etc. Brilliant- roused the entire nation to war. If you ... more.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.