What is the word for an array of nonaligned or friendly states that cushion or protect a larger country from invasion, as happened with the former Soviet Union and its Eastern European neighbors?

Question

Quizplus · Accepted Answer

The term "buffer zone" refers to a region of nonaligned or friendly states that act as a cushion or protection for a larger country from invasion, as was the case with the former Soviet Union and its Eastern European neighbors. Therefore, option C is the best choice for the given word. The other options do not relate to the given context.

What Is the Word for an Array of Nonaligned or Friendly