Not a big student of Polish military history, but Jon Slobieski saved Western Civ's butt from the muzzies at the Battle of Vienna-only to be carved up by "allies" a few years later.
Likewise, Pilsudski (sp?) stopped the advance of communism in the 1920s by stopping the Russkies. I think the battle was the "Miracle at Vistula". Didn't work out too well for them. We supposedly went to war to stop the Nazis from expanding but Poland was also invaded by the Soviets. We stopped the Nazis but left the Poles to suffer at the hands of the Soviets. Patton was right-we should have pushed the Russians back while we were there.