Really, was Poland betrayed or Poland has betrayed both her minorities and the League of Nations? To answer that question we should study history of Poland in 20th century as entirety, not just carefully selected episodes of temporary setbacks.
Article 93 of the Treaty of Versailles stated that: "Poland accepts... provisions... to protect the interests of inhabitants of Poland who differ from the majority of the population in race, language, or religion". It is a notorious truth that Poland has treated her minorities meryclessly. Then, later, at Postdam Poles were handed over new territories, large parts of Germany with free hands to perform a ruthless, unprecedented ethnic cleansing - never seen before regarding both the size of expulsions as well as lack of compassion for former compatriots of different origin, language and religion. Poles are in fact the largest profiteers of two world wars. Poland has emerged as a pure national state as a result of destruction of many minorities.
Before the butchery has started, there were just 60% citizens of Poland of polish ethnicity. Really, who was betrayed and where these missing minorities are now?
Edited by Tamino, 01 April 2016 - 07:39 PM.