Mezue ahịrịokwu na-esonụ: Na plebiscite East Prussia nke 1920 ndị bi na 1,459 tụrụ vootu ịnọgide na Germany, 40 maka Poland. Mgbe Agha Worldwa nke Abụọ gasịrị, e debere mpaghara ahụ n'okpuru nchịkwa Polish site na Nkwekọrịta Potsdam. Ihe ka ọtụtụ ná ndị Germany
gbara ọsọ ma ọ bụ a chụpụ ha. Ndị Poland kwabatara, ụfọdụ n'ime ha bụ ndị a chụpụrụ n'ókèala ndị Poland nke Soviet Union weghaara, bilitekwara n'obodo ahụ.