Question

Why was NATO organized?
to aid foreign nations recovering from the war
to halt the growth of Communism in Europe
to divide the conquered territories during the Cold War

Answer 1

The best answer to halt the growth of Communism in Europe: Nato was an equivalent of the Warsaw Pact of communist nations that promissed each other mutual defense.

Fun fact: some of the former Warsaw Pact countries are now in NATO.

Answer 2

to halt the growth of Communism in Europe