According to Truman, why did the USA help establish the United Nations

Truman saw the communist invasion of south korea as a test of the containment policy and ordered american naval and air power into action. he then called on the united nations to act. because the soviet union was boycotting the security council over its china policy truman succeeded.

answer; (religion)

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939