Question

How did the failure of the League of Nations to prevent World War II affect the formation of the United Nations?
The US, the UK, the USSR, and China did not think the United Nations would be successful, so they refused to join.
The US, the UK, the USSR, and China were very determined to create an effective organization that would not fail.
The US, the UK, the USSR, and China were afraid to give the United Nations too much power and hindered the organization.
The US, the UK, the USSR, and China had not belonged to the League of Nations, and therefore had no interest in the United Nations.

Answer 1

Correct answer: The US, the UK, the USSR, and China were very determined to create an effective organization that would not fail.

Brief explanation: The League’s inability to stop aggression in the 1930s convinced the wartime great powers that a new, stronger system was needed. They worked to design the United Nations so the major powers would be directly involved (avoiding the League’s exclusion of key states), and they gave the UN mechanisms—most importantly the Security Council with permanent members and veto power—to secure great‑power participation and make collective security more realistic. This was intended to prevent another total breakdown like the League’s failure.