NATO was led by ______ and the Warsaw Pact was led by _______.
(1) USSR, USA
(2) China, USSR
(3) USA, India
(4) USA, USSR

4

NATO was led by the USA, and the Warsaw Pact was led by the USSR. Therefore, the correct answer is (4) USA, USSR.

1949- The North Atlantic Treaty Organisation (NATO) came into existence in April 1949. It was an association of twelve states which declared that an armed attack on any one of them in Europe or North America would be regarded as an attack on all of them. Each of these states would be obliged to help the other.
1955- The eastern alliance, known as the Warsaw Pact, was led by the Soviet Union. It was created in 1955 and its principal function was to counter NATO’s forces in Europe.