Explain the events that led to the intensification of the Cold War

October 4, 1957, is a landmark date in the history of science and technology. On that day, the Soviet Union launched a rocket that put the world's first artificial satellite into orbit. "Sputnik 1"For Americans, Sputnik carried a grim message. It went far beyond the prestige the Soviets gained in the eyes of smaller nations that saw it as a communist victory over the West. If they had a rocket that could launch a satellite into orbit, what could stop them from building an ICBM that could deliver a nuclear bomb? Cuban Missile Crisis

Explanation:

it was a act of seld fesnse more over it was a peace treaty between the fogein contunries.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )