Jim Crow Laws is the answer.
The correct answer is They all wanted to join the Allies during World War II.
After the end of the First World War, European countries sought ways so that the disputes that engendered this disastrous conflict would no longer be repeated. However, the severe punishments imposed by the Treaty of Versailles and the inefficiency of the League of Nations - in its role in maintaining world peace - have failed to contain the revanchism of the defeated nations. In a short time, imperialist and expansionist actions gave the signal that the wounds were far from being healed.
