https://internationallaw.blog/2026/05/04/quo-te-tendis-mundo-occidentali-article-5-north-atlantic-treaty-article-427-treaty-on-european-union-and-the-strive-for-collective-security/International Law Blogen2026-05-04T11:36:48+00:00Quo te tendis, Mundo Occidentali? Article 5 North Atlantic Treaty, article 42(7) Treaty on European Union and the strive for collective securityNATO, European Council, Mutual defence clause, violation of Poland's airspace, regional collective security systemshttps://internationallaw.blog/wp-content/uploads/2026/05/unsc-meeting-ukraine-un-photo-1.jpg?w=150