Portuguese Delegation to the North Atlantic Treaty Organization

Ministry of Foreign Affairs

NATO’s Mission

NATO’s purpose is to guarantee the freedom and security of its members through political and military means.

On a political level, NATO promotes democratic values and enables members to consult and cooperate on defence and security-related issues to solve problems, build trust and, in the long run, prevent conflict.

On a military level, NATO is committed to the peaceful resolution of disputes. If diplomatic efforts fail, it has the military power to undertake crisis-management operations. These are carried out under the collective defence clause of NATO's founding treaty - Article 5 of the Washington Treaty - or under a United Nations mandate, alone or in cooperation with other countries and international organisations.