Battle of Grunwald 1410 The biggest medieval battle. Germans smashed.
This thread title is so-not-PC.
As we are all together in EU now, it should read...
Battle of Grunwald 1410
Polish-German military meeting - Tannenberg/Grunwald 1410
The biggest medieval battle.
The biggest (but luckily only temporary) misunderstanding in mutual relations.
Compromise finally reached, with a slightly better outcome for the Polish side.