germany didnt steal anything from poland. poland ceased to exist in the middle ages and entered a union with lithuania becoming the polish lithuanian common wealth, ruled by the jagellionids, the plc fought three successive conflicts with russia, prussia, and austria-hungary, after which the plc was forced to give up land to its stronger rivals. poland, by chose, became a two-state dynastic commonwealth. the plc then lost a bunch of wars and as a result of losing those wars (they were the aggressor btw) they lost land.
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