NATO can get involved, but on a voluntary, country by country basis, as in Libya, where enough individual NATO members joined in for the non-participating (& entirely within their rights, because it was an operation not mandated by the treaty) to accept the use of NATO facilities.
The treaty actually covers only attacks on the territory, aircraft, or ships at sea within the specified area, i.e. Europe, North America, the Mediterranean, & the Atlantic Ocean & islands within it north of, IIRC, the Tropic of Cancer. Article 5 of the treaty? It's on line, but ICBA to look it up right now. The Canaries, Azores & Bermuda are covered, but not Ascension, the Falklands, the Netherlands Antilles, Martinique, etc.
One could wonder if the Uruguayan president, & maybe one or two others, agreed to the memorandum because they knew it was meaningless & unenforceable. They could say to Argentina "Well, we showed willing, but we can't break our own laws, & it'll take a long time to bring in legislative changes. Lots of technical issues, you know. We'll start a review, to work out what's needed, to report back in a year or two . . . ".
The treaty actually covers only attacks on the territory, aircraft, or ships at sea within the specified area, i.e. Europe, North America, the Mediterranean, & the Atlantic Ocean & islands within it north of, IIRC, the Tropic of Cancer. Article 5 of the treaty? It's on line, but ICBA to look it up right now. The Canaries, Azores & Bermuda are covered, but not Ascension, the Falklands, the Netherlands Antilles, Martinique, etc.
One could wonder if the Uruguayan president, & maybe one or two others, agreed to the memorandum because they knew it was meaningless & unenforceable. They could say to Argentina "Well, we showed willing, but we can't break our own laws, & it'll take a long time to bring in legislative changes. Lots of technical issues, you know. We'll start a review, to work out what's needed, to report back in a year or two . . . ".