Spartan Spirit - Best for the West - E18 - NATO
Charter of the United Nations.
NATO - Topic: Collective defence and Article 5
NATO - Topic: Deterrence and defence
Opinion | Foreign Affairs; Now a Word From X - The New York Times (nytimes.com)
https://www.nato.int/cps/en/natohq/official_texts_217320.htm
NATO - NATO-Russia: setting the record straight
https://www.nato.int/cps/en/natohq/115204.htm
NATO, explained — the alliance and why it's crucial now : NPR
NATO - 10 things you need to know about NATO
https://www.foreignaffairs.com/articles/russia-fsu/2022-01-17/time-nato-close-its-door