Answer:
An example coudl be the decision of the aero-bridge of Berlin in 1948. It was a fateful decision that impacted on the course of the Cold War.
Step-by-step explanation:
Why is these a fateful decision? The American government could face the loss of prestige of letting Western Berlin fall into anarchy, but however decided to engage in an innovative action, that resulted in a propaganda victory, that would eventually lead to the development of Western Berlin as a beacon against East Germany and the Soviet Union.