Overthrow of the Russian monarchy and withdrawal from World War I.
In 1917, Nicholas II abdicated (step down) from his thrown and gave by control of the monarchy for himself and his son. This allowed for a new nationalist government to take control.
The new government was then overthrown by the Lenin led Communist Party.
In regards, to World War I, after Nicholas stepped down, Russia signed a peace treaty with Germany and left the war before their other allies. They lost western lands in Russia but were able to save their military from a horrible showing on the Eastern Front.
In turning Germany's focus against the Jews, Hitler and his Minister of Propaganda, Goebbles, only allowed books to be published that incited hatred against the Jews, and banned Jews from working for newspapers.
Answer:
Communist Party of the United States of America
Explanation:
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diseases from Europeans killed many native Americans because they were not immune to those diseases