Sousa (and Wino and .....)
The USA made a great contribution to maintaining freedom and defeating totalitarianism in the Second World War. It's debateable as to whether Britain and Russia could have done it alone (maybe, maybe not, and if we had succeeded it would have been costly, long, and very hard).
But the Second World War ran from 1939-1945 (and the Great War from 1914-18) - note the start dates gentlemen.
And while most Europeans will forever be grateful to our US allies for their help, this arrogant "Without us you'd be speaking German" attitude is ignorant, historically dubious, offensive and counter productive.
Do you think that victory in WWII would have been such a walk-over without the Russians and the Brits? Without radar? Without the A-bomb? Without victory in North Africa? Without Enigma? Without the defeat of the Luftwaffe in 1940? Without the Wehrmacht bleeding to death in the Russian snow? Without the destruction of the Tirpitz, Bismarck, Graf Spee, etc. etc.
Do we have to start reminding you of the dodgy US foreign policy adventures which we've supported, which would have led to complete international isolation without that support?