During the Cold War, when the United States and the U.S.S.R. had thousands of nuclear weapons-carrying missiles, each side hoped that peace would be maintained through a policy of __________. A. massive retaliation
B. reliance on the United Nations to resolve disputes
C. withdrawing armed forces from Europe
D. ending their alliance systems
So the question is to find the best answer that could support and complete the question and the answer to your question is letter D. Ending their alliances system. I hope you are satisfied with my answer and feel free to ask for more if you have clarification and questionsÂ