Respuesta :
The Soviet Union was the socialist state, which eventually comprised Russia, Georgia, Armenia, Moldova, Latvia, and many other countries.
The event that prompted USSR to form the Warsaw pact was the addition of West Germany to NATO in 1955.
Warsaw Pact of 1955 can be described as:
- The Warsaw Pact was a defense treaty established by the USSR and other seven Soviet satellites in May 1955.
- The Pact was created with the addition of West Germany in NATO in 1955. NATO is the North Atlantic Treaty Organisation between European Countries.
- The Warsaw Pact established balance and there was no direct military confrontation between the USSR and NATO.
Thus, the correct answer is Option D.
To know more about Warsaw Pact, refer to the following link:
https://brainly.com/question/395810