The principle of collective defence is at the very heart of NATO’s founding treaty. It remains a unique and enduring principle that binds its members together, committing them to protect each other and setting a spirit of solidarity within the Alliance.

NATO constantly reviews and transforms its policies, capabilities and structures to ensure that it can continue to address current and future challenges to the freedom and security of its members. Presently, Allied forces are required to carry out a wide range of missions across several continents; the Alliance needs to ensure that its armed forces remain modern, deployable, and capable of sustained operations.

Many of the challenges NATO faces require cooperation with other stakeholders in the international community. Over more than 25 years, the Alliance has developed a network of partnerships with non-member countries from the Euro-Atlantic area, the Mediterranean and the Gulf region, and other partners across the globe. NATO pursues dialogue and practical cooperation with these nations on a wide range of political and security-related issues. NATO’s partnerships are beneficial to all involved and contribute to improved security for the broader international community.

NATO is an active and leading contributor to peace and security on the international stage. It promotes democratic values and is committed to the peaceful resolution of disputes. However, if diplomatic efforts fail, it has the military capacity needed to undertake crisis-management operations, alone or in cooperation with other countries and international organisations.