What would an observer examining the development of self-determination in Eastern Europe between the World Wars conclude? that it promoted peace between nations, that practical concerns made it difficult to implement, that it encouraged socialism, that it promoted national unity

An observer examining the development of self-determination in Eastern Europe between the World Wars would likely conclude that practical concerns made it difficult to implement. This is because the region was characterized by complex ethnic and nationalistic tensions, which made it challenging to fully realize the principle of self-determination. Additionally, the rise of authoritarian regimes and the power struggles between different nations in the region further complicated the process of implementing self-determination. Ultimately, these factors hindered the promotion of peace between nations and led to continued conflicts and instability in Eastern Europe during this period.