Which country prepare the objectives of NATO?

The North Atlantic Treaty Organization (NATO) was established on April 4, 1949, primarily through the initiative and leadership of the United States of America.

While the treaty was a collective effort involving twelve founding nations—including the United Kingdom, Canada, France, and others—the United States played the central role in drafting the objectives. The primary goal was to provide collective security against the perceived threat of the Soviet Union during the early Cold War period. The U.S. government, under the Truman administration, championed the North Atlantic Treaty as a mechanism to ensure stability in Western Europe and to integrate the security interests of North America and Europe under the principle of collective defense, as enshrined in Article 5 of the treaty.