Around 1917-1918, American government officials (soldiers) murdered thousands, if not tens of thousands of Germans, for (almost) no reason whatsoever.
And then, because the Americans — those clueless retards — are moronic as well as blindly patriotic, 20-30 years later, they still had not learned the lessons of tolerance and understanding, and they again, for no reason whatsoever I tell you, started assassinating poor, innocent Germans again, tens of thousands, hundreds of thousands!
No wonder why the Germans and their leaders in the 1910s and in the 1940s hated us… (Now, if only we could have tried a little more understanding…)