Actually, all of them are correct. All may be selected:
African Americas, Christians, Jewish, Immigrants and Organized Labours.
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The commanding general and his troops were overly confident of victory and took foolhardy chances in battle.
It was "Trotsky" who welded the new Red Army into a disciplined fighting force, although his efforts would prove ultimately to be in vane since he was later persecuted for being a traitor to the state.
Answer:
The Kellogg-Briand Pact was signed by 62 countries prior to World War II, condemning warfare but providing no enforcement mechanism.