The switch from Brinksmanship to Détente was a joint policy shift by both the US and the Soviet Union. Neither nation could have done it alone. (1) Both nations understood that a state of Mutually Assured Destruction had been reached, and that a war between the superpowers risked nuclear devastation. Both nations agreed that it was time to lessen the tensions between them and reduce the risk of a catastrophic confrontation. (2) Both nations had spent vast fortunes on the nuclear arms race, as well as domestically. Both recognized that continued tactical spending on that scale was economically inadvisable, if not unsustainable. (3) Both nations realized the importance of improving their economic positions by opening new trade markets with with nations of the "other side" which were off limits during the Cold War. (4) There were concerns in the Soviet Union regarding the deterioration of Chinese-Soviet relations. When the the People's Republic of China agreed to open diplomatic relations with the US's Nixon administration, the Soviet leadership saw a need to improve US-Soviet relations to head off a US-Chinese alliance that would threaten the Soviet Union economically and militarily. (5) Both nations had growing domestic anti-war and anti-nuclear sentiments. Both Richard Nixon and Leonid Brezhnev hoped that thawing international tensions would increase their respective popularity and political power.
The United States believed that brinkmanship was negative compared to detente.
detente and containment
it led to a reduction in tension between the superpowers
This entirely depends on what policies we are talking about, be they educational policy, military policy, foreign policy, trade policy, etc.As concerns foreign policy, US foreign policy in its first few decades was NEUTRALITY, meaning that the US would stay out of long-term alliances, treaties, engagements, and wars with the major European powers.
neutrality
It was a policy of containment to stop communism.
Detente
President Richard Nixon and his National Security Adviser, Henry Kissinger, ushered in the period of detente. Brinksmanship had led to crisis after crisis for decades, the last being the Vietnam War. Failure in Southeast Asia led Nixon to aim for a level of peace with the Soviet Union.
nuclear war
Brinkmanship
the question makes no sense look at it again
The Soviet Union made their own nuclear weapons to compete with the US
The Soviet Union made their own nuclear weapons to compete with the US
detente and containment
It was good a good and sound policy. it allowed American tensions between American and the Soviet Union to be decreased.
a joint policy to reduce tensions and improve relations
Detente' is actually a form of peaceful coexistence. It was pursued by all the US presidents after the death of Stalin. Soviet Premier Nikita Khrushchev was a proponent of this policy as well.
Detente