How did the failure of the league of nations to prevent world war 2 affect the formation of the united nations a. the us uk ussr and china did not think the united nations would be successful so they refused to join b. the us uk ussr and china were determined to create an effective org that would not fail c. us uk ussr and china were afraid to give the united nations too much power and hindered the org d. us uk ussr and china had not belonged to the league of nations and therefore had no interest in the united nations