The correct answer is: A. To maintain and develop individual and collective capacity to resist armed attack.
The North Atlantic Treaty Organization (NATO) is an intergovernmental military alliance between 30 North American and European countries. The organization implements the North Atlantic Treaty that was signed on 4 April 1949. NATO constitutes a system of collective security, whereby its independent member states agree to mutual defense in response to an attack by any external party. NATO’s headquarters are located in Haren, Brussels, Belgium, while the headquarters of Allied Command Operations is near Mons, Belgium.
The Treaty of Brussels was signed on 17 March 1948 by Belgium, the Netherlands, Luxembourg, France, and the United Kingdom. The treaty was a mutual defense pact in which the signatories agreed to come to the aid of any other signatory that was attacked by an outside power. The treaty was seen as a response to the growing threat of the Soviet Union in Europe.
The North Atlantic Treaty was signed on 4 April 1949 by the original signatories of the Treaty of Brussels, as well as the United States, Canada, Portugal, Italy, Norway, Denmark, Iceland, and Greece. The treaty expanded the scope of the Treaty of Brussels to include the United States and Canada, and it also included a commitment to collective defense against an attack by any external party.
The purpose of NATO is to maintain and develop individual and collective capacity to resist armed attack. The alliance provides a forum for consultation and cooperation among its members on a wide range of security issues. NATO also plays a role in promoting democracy, human rights, and the rule of law in its member states.
Option B is incorrect because NATO is not primarily concerned with defending economic and trade interests. Option C is incorrect because NATO is not primarily concerned with providing collective defense and economic cooperation in Southeast Asia. Option D is incorrect because NATO is a real organization with a specific purpose.