It has been said that the neutrality acts made the u. s. marvelously prepared to avoid ww1. To what extent is this true?

The league of nations was found in 1919 to keep peace after world war l.but it failed to prevent world war ll in 1939,so in 1945 the nations of the world set up a new organization,the united state (un).since then, the un has encouraged international cooperation and worked to resolve conflict

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