NATO Keeps Article 5 Trigger ‘Deliberately Ambiguous’

NATO will not publicly define the exact point at which an attack would trigger its collective-defense clause as doing so would help adversaries calculate how far they can escalate without provoking an allied response, Secretary General Mark Rutte said.Rutte made the remarks during a Chicago Council on Global Affairs discussion in Des Moines, Iowa, on Tuesday, Sept. 22.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official.The discussion, moderated by Chicago Council President Leslie Vinjamuri, also included US Ambassador to NATO Matthew Whitaker and focused on the alliance’s future and its importance to American security.“Article 5 is deliberately ambiguous, so we will never exactly tell anyone when Article 5 is exactly triggered or not,” Rutte said.He explained that the uncertainty is intentional because NATO does not want to provide its adversaries with information that could help them design attacks that remain just below the alliance’s declared threshold.NATO keeps response options secretRutte said NATO has all the response options it needs to counter hybrid threats, but warned that some allied actions would remain invisible because they would not be made public.The alliance’s response would also not necessarily mirror the original attack, he said. NATO could use either symmetric measures – responding through similar means – or asymmetric ones involving a different type of political, economic, cyber, or military pressure.According to Rutte, allies could select measures designed to impose costs without revealing their full capabilities or intelligence. Other Topics of Interest Ukraine’s Battle-Tested Drones Could Soon Be Made in America Kyiv’s interceptors have already helped defend US bases from Iranian drones. A landmark deal could now bring Ukrainian technology to America. NATO has stated since 2016 that hybrid actions against one or more members could lead to a decision to invoke Article 5. The alliance’s official policy does not define a fixed threshold, leaving each incident to be assessed individually.Hybrid warfare can combine cyberattacks, sabotage, disinformation, economic pressure, covert operations, and limited military actions intended to cause damage while complicating attribution and avoiding a conventional NATO response.What Article 5 requiresArticle 5 establishes that an armed attack against one NATO member is considered an attack against all members.However, activating the provision does not require every ally to take exactly the same action or automatically declare war. The treaty says each member must assist the attacked ally by taking whatever action it considers necessary, which may include the use of armed force.NATO’s official explanation of Article 5 says the alliance determines whether an incident constitutes an armed attack on a case-by-case basis.The provision has been invoked only once, following the Sept. 11, 2001 terrorist attacks against the US.Rutte has previously emphasized that the collective-defense commitment itself is clear, while NATO deliberately avoids publishing detailed conditions for its activation.Russia tests the thresholdThe comments come amid growing warnings that Russia could use deniable drone or missile incidents, cyberattacks, and sabotage to test NATO’s willingness to defend its members without launching a conventional invasion.Polish Prime Minister Donald Tusk said intelligence assessments indicated Moscow could stage “hybrid” drone and missile strikes against countries supporting Ukraine and then present them as accidents.According to Tusk, such operations could be intended to persuade European societies that Article 5 is “more theoretical than practical” and undermine confidence in NATO’s collective defense.Rutte’s remarks appear designed to counter that strategy by warning Moscow that remaining below an assumed military threshold would not guarantee the absence of an allied response.NATO, he indicated, could retaliate through measures its adversaries might not immediately see or connect to the original attack. Kyiv Post is Ukraine’s first and oldest English news organization, reporting since 1995. Its international reach – 97% of readers are outside of Ukraine – make it truly Ukraine’s global voice.