• Last updated: 16 Dec. 2015 14:28

Encyclopedia of NATO Topics

Background information on the Alliance, its policies, activities and structures

Browse through the thematic overview OR the alphabetical index

Introduction to NATO

Understand how and why NATO was created, its fundamental security tasks and the main policies and principles that guide the Organization.

Crisis management operations

Get a comprehensive overview of NATO-led operations and missions, past and present, large and small, conducted across several continents.

Security challenges and capabilities

Read more about today's security challenges and the defence capabilities NATO is developing to tackle them such as missile defence or Alliance Ground Surveillance.

Partnership and cooperation

Learn more about how NATO works with a network of over 40 non-member countries as well as other organisations to promote security and tackle shared challenges.

Civilian and military structures

See how 28 countries work together through a relatively small number of structures that interact on a daily basis and are bound together by the principle of consensus decision-making.

Wider activities

Discover other areas in which NATO is involved such as disarmament, arms control and non-proliferation, energy security, science and gender issues.