The French don’t send troops into Alsace, tell the Germans they don’t have the right to live there anymore, forcibly evict them, and replace them with French citizens. They also don’t annex German territory on the pretense of national defense.
No, actually that’s almost exactly what they did.
Alsace was a German area even before the Franco-Prussian War. The people spoke German, were related to the people across the Rhine in Baden, and were Germans in every way. It had been taken by the French back in Louis XIV’s day, but nobody tried to make Frenchmen of them then.
After 1870, it was part of Germany, and remained part of Germany until 1918, when the Allies gave it to France. French revanchism before 1914 was embodied in Plan 17. Plan 17 was exactly designed to take Alsace (Elsass) and Lorraine (Lothringen) away from Germany. That was the French war plan…their only war plan. As it turned out, Plan 17, which the French executed, led to the near encirclement of their entire army. It was a bad plan chiefly because it assumed the Germans would only fight defensively over Elsass and Lothringen. That’s why the French threw nearly their whole army into it. Germany’s Schleiffen Plan was a big shock and almost cost France the war.
The French imposed the French language in the schools after 1918, told the residents they were now French, and made it a part of France. Until then, it was as German as was Baden, across the river. It has only been in recent years that German has almost disappeared from Alsace as a first language.
And, like the Arabs now living in other Arab countries, lots of Germans left both Alsace and Lorraine for the U.S. because of the incessant warring, because of revolution, and because they didn’t want to be ruled by the French. Probably no fewer than 1/2 of the German-descended Catholics in the U.S. came from there.
Germany took it back in 1940, and lost it again in 1944 or 1945.
Koenigsberg, Silesia, Pomerania and East Prussia were indisputably German until 1945. Germans were absolutely driven out and replaced with Russians and Poles. Eastern Poland was part of Poland until 1940. The Russians shifted Poland to the west, shipped enormous numbers of Poles to Siberia, Kazakhstan and other remote places, and it’s largely now populated by Ukrainians and Belorussians. The main reason why there are Catholics in Russia today is because of all the Poles and Lithuanians the Russians shipped off to remote areas in the former Soviet Union. There are now lots of ethnic Russians in Lithuania, though there weren’t before WWII.
And no UN tribunal has ever uttered a peep over any of it. Why? Because it’s all political and based on power. Jews aren’t powerful. Easy to beat up on them, particularly if one has a little Arab oil money in one’s pocket.