a classic case of "to the victor, the spoils"
The Usa may not have "won" ww2 but they certanly came out on top, Nation numero Uno, top dog. britain had to sell half of what we owned to the americans, (partly due to churchill being a stupidly pro american @#*£!) they got most of the world and with t the ability to dictate what was right and wrong. ( not that i'm anti-american, but we did give them the design for computers, destroyng our own so they got all the credit and also our supersonic aircraft designs, along wth various bits and bobs which would have proved very useful)