the answer to your question is northerners and missourians
<span>The Truman Doctrine was an American
foreign policy whose stated purpose was to counter Soviet geopolitical
expansion during the Cold War. It was first announced to Congress by
President Harry S. Truman on March 12, 1947 and further developed on July 12, 1948 when he pledged to contain threats to Greece and Turkey.</span>
Karl Marx was a communist who I think believed everyone should share everything. He wanted to abolish rich v poor
Russia built nuclear warheads in Cuba this meant they had first strike capabilities. In the event of launch Russia could hit the United States first.
Vicksburg effects: The Battle of Vicksburg effected the Civil War because the Union got full control of the Mississippi river therefore taking over and shutting down the confederates trade, transportation, and military/fortifications.