Respuesta :
"Crossing the Rubicon" is a popular expression that means to go past a point of no return by doing an action so powerful that it is irreversible. It is believed that the phrase originated when Julius Caesar took his armies past the Rubicon Barrier that no general had ever crossed, and marched on to Rome.
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.
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.