Question

who was too weak to stop hitler from expanding his empire? european union usa united nations league of nations

Explanation:

To determine the answer, we analyze the historical context. The European Union was established after World War II, so it didn't exist during Hitler's time. The USA was initially neutral and later entered the war to combat Hitler. The United Nations was also formed after WWII. The League of Nations, however, was the intergovernmental organization during the time of Hitler's expansion. It lacked the power and unity to effectively stop Hitler's aggressive actions, as it had limited enforcement mechanisms and member states were not united in opposing him strongly enough.

Answer:

D. League of Nations (assuming the options are labeled as A. European Union, B. USA, C. United Nations, D. League of Nations)