https://www.rferl.org/a/nato-chief-not-shocked-by-trumps-blunt-direct-speech/28510982.html
NATO Chief Not Shocked By Trump's 'Blunt, Direct' Speech
Why is NATO called OTAN?
This means that it also has two acronyms – in French, NATO is OTAN, which stands for Organisation du Traité de l'Atlantique Nord. One of the founding principles of NATO is Article 5 of its charter, which states that an armed attack on one member nation would be considered as an attack on all