Question

Why did the U.S. support the creation of the North Atlantic Treaty Organization (NATO) in 1949?

Answer 1

In 1949, the prospect of further Communist expansion prompted the United States and 11 other Western nations to form the North Atlantic Treaty Organization (NATO). The Soviet Union and its affiliated Communist nations in Eastern Europe founded a rival alliance, the Warsaw Pact, in 1955.

Answer 2

The North Atlantic Treaty Organization or NATO was an organization created in 1949 to assist in providing protection against the Soviet Union. The organization was originally established by The United States, Canada, and some Western European countries but has expanded over the years.

But, that's all I know, sorry. :(