During WWI all the royal houses in Europe were intermarried, with Germany's emperor being first cousins with the tsar and the British king, yet those countries became mortal enemies. Just because there are some connections, even familiar ones, that doesn't mean that they are on the same side or can't be enemies. Even Michael Corleone was betrayed by his own brother and killed him, and that really happened.
Source:
https://www.youtube.com/watch?v=AO-VFDYy9Rk 
common man i thought that you were going to show me some bad ass documentary about the war situation.
My point is that the British didnt fought against the Nazi empire to preserve their "independence". At first Hitler loved the English because they also exploited the people of Africa and India the same way as he did with the Jews. The plan was for King Edward VIII to return to the throne by displacing his brother George VI but later the British government headed by Churchill realized that with those actions their power to shape events in Europe would have been extinguished.I only wanted to point out some connections or conspiracies before the attacks
