The little-known clause that Europe’s security may now depend on
Article 42.7 had languished in obscurity for decades – until Donald Trump began casting doubt on US commitment to Nato • Don’t get This Is Europe delivered to your inbox? Sign up here Most people have heard of Nato’s article 5 . The “one for all, all for one” clause states an armed attack on one member country should be considered an attack on all, requiring member states to come to the victim’s aid – including with “the use of armed force”. Not so many, till this week, had heard of the EU’s own
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Donald Trump has never been a Nato fan, and since the start of the Iran war has threatened to leave. Photograph: Piroschka Van De Wouw/ReutersView image in fullscreenDonald Trump has never been a Nato fan, and since the start of the Iran war has threatened to leave. Photograph: Piroschka Van De Wouw/ReutersThis is EuropeWorld newsThe little-known clause that Europe’s security may now depend onArticle 42.7 had languished in obscurity for decades – until Donald Trump began casting doubt on US commitment to Nato Don’t get This Is Europe delivered to your inbox? Sign up hereJon Henley Europe correspondentWed 29 Apr 2026 10.30 EDTLast modified on Wed 29 Apr 2026 10.32 EDTSharePrefer the Guardian on GoogleMost people have heard of Nato’s article 5.
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