Conversation so far:
how was the cuban missile crisis an example of brinkmanship
In The Soviet Union placed nuclear missiles in Cuba. This act of brinkmanship nearly brought the Soviet Union and the United States to a nuclear war.
what is the definition of brinkmanship
Brinkmanship is the art or practice of pushing a dangerous situation or confrontation to the limit of safety especially to force a desired outcome.
what is the definition of brinkmanship in relation to the cold war
Brinkmanship is a foreign policy used in the Cold War which is where a country would push a dangerous issue or event to the edge looking for the best outcome.
when was the cold war
The Cold War was a period generally considered to span the 1947 Truman Doctrine to the 1991 dissolution of the Soviet Union.

Question: when did the first phase begin
Self-contained rewrite: when did the first phase of the cold war begin