1.What were the three issues that led to hard feelings between the Soviet Union and the United States? The Soviet Union signed a treaty with Hitler, the U.S. kept the atomic bomb a secret, and the U.S. took a long time to attack Hitler.
2. Reagan escalated the Cold War during his presidency, accelerating a reversal from the policy of détente that began in 1979, following the Soviet war in Afghanistan. Reagan ordered a massive buildup of the United States Armed Forces and implemented new policies toward the Soviet Union.
Hunting and gathering was already existing before this : in fact the neolithic revolution was going away from this lifestyle and starting farming and domestication of animals.
