Practice question

Question

Read the passage given below and answer the following question.
The Cold War was not simply a matter of power rivalries, military alliances and of balance of power. These were accompanied by a real ideological conflict as well, a difference over the best and most appropriate way of organising political, economic and social life all over the world.
Which of the following military pacts was/were signed by both superpowers (the USA and the USSR) to balance the power rivalries?