Nov 12, 2025 · Collective defence is NATO’s most fundamental principle. Article 5 of the North Atlantic Treaty states that an armed attack against one NATO member shall be considered an …

Nov 13, 2025 · La défense collective est le principe le plus fondamental de l'OTAN. L'article 5 du Traité de l’Atlantique Nord stipule qu’une attaque armée contre un ou plusieurs Alliés sera …

Sep 2, 2022 · The Washington Treaty – or North Atlantic Treaty – forms the basis of the North Atlantic Treaty Organization – or NATO. The Treaty was signed in Washington D.C. on 4 April …

1. The definition of the territories to which Article 5 applies was revised by Article 2 of the Protocol to the North Atlantic Treaty on the accession of Greece and Turkey signed on 22 October …

Sep 1, 2014 · NATO invoked its collective defence clause (Article 5) for the first and only time in response to the terrorist attacks of 11 September 2001 on the United States. NATO’s Counter …

Aug 27, 2019 · For Nato, a serious cyberattack could trigger Article 5 of our founding treaty. This is our collective defence commitment where an attack against one ally is treated as an attack …

Sep 23, 2025 · Consultation takes many forms. At its most basic level, it involves simply the exchange of information and opinions. At another level, it covers the communication of actions …

Apr 14, 2021 · In 2001, Allies invoked Article 5 of the Washington Treaty for the only time in NATO’s history and went to Afghanistan together with clear objectives: to confront al-Qaeda …

Sep 10, 2024 · The NATO Through Time podcast dives deep into NATO’s history, reflecting on how the past influences the present – and future – of the longest-lasting alliance in history. …

Dec 10, 2025 · This 5% commitment includes at least 3.5% on core defence requirements for Allied militaries to meet the NATO capability targets, and up to 1.5% on defence- and security …