The cold war became entrenched in the mid-1950s after the formation of what 2 rival military alliances?

North Atlantic Treaty Organization (NATO) and the Warsaw Pact

Explanation:

In the mid 1950's, the tensions between the communist east and capitalist west were constantly on the rise. This led to the formation of military alliances from both sides. The Western countries formed NATO, a military organization initially consisted of USA, Canada, and Western European countries. The Soviets responded adequately, and they formed the Warsaw Pact with their allies, which was also a military organization. The reason for the formation of these two organizations was to protect the interests of the member countries, be it safety, political, economical, social, or zones of influence. Both organizations were constantly pilling up more and more weaponry and were constantly increasing the armies, heavily investing in its development, equipment, and training.

Explanation:

NATO and the Warsaw Pact were established.

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