It is SaO2 that measures oxygen saturation of hemoglobin, and it should be clear that it depends on the partial pressure of arterial oxygen. If PaO2 drops, there's less dissolved oxygen, and therefore less saturation of hemoglobin with oxygen.
The Cuban Missile Crisis was a propaganda victory for the United States and an undisclosed blow to containment. Some may contend that since the Soviet Union ultimately fell, the policy of containment was successful. This is an overly generous statement.
In the case of the United States the policy was known as containment. Simply put it was the goal of the US to contain the spread of Communism. The specifics and implementation of this policy as well as the Soviet response will be the focal point of todays lesson. I. Post WWII Foreign Policy.