NATO allies reaffirm ‘ironclad commitment’ to collective defence; Trump tempers fury as summit ends
NATO heads of state and government met in Ankara for the alliance's annual summit and issued a declaration reaffirming "ironclad commitment" to collective defence under Article 5 of the North Atlantic Treaty (Washington Treaty), stating that "an attack on one is an attack on all."
The declaration characterised Russia as posing a "long-term threat" to Euro-Atlantic security and stability.
Member states pledged continued military assistance to Ukraine, committing roughly €70 billion (about $80 billion) for 2026 and "at least equivalent levels" of support for 2027.
The summit reaffirmed the defence-spending trajectory agreed at the alliance's previous summit, alongside new procurement and defence-industrial-capacity commitments.
NATO's Origin and Article 5 Collective Defence Clause
The North Atlantic Treaty Organization (NATO) was established by the North Atlantic Treaty (also called the Washington Treaty), signed in Washington, D.C. on 4 April 1949, originally by 12 founding members to provide collective security against the Soviet Union during the Cold War. Article 5 of the treaty is its defining provision: it states that an armed attack against one or more member states in Europe or North America shall be considered an attack against all of them, obliging other members to assist — including, if necessary, with armed force. Article 5 has been formally invoked only once, by the United States after the 11 September 2001 attacks.
Key Details
- NATO headquarters: Brussels, Belgium (political); Supreme Headquarters Allied Powers Europe (SHAPE), near Mons, Belgium (military command).
- Current membership: 32 countries, following the accessions of Finland (2023) and Sweden (2024).
- NATO is a treaty-based collective-defence alliance, distinct from dialogue forums such as the Quad, which carry no mutual-defence obligation.
The Ankara declaration's language of "ironclad commitment" to Article 5 directly invokes this founding treaty clause, aimed at reassuring members bordering Russia of the alliance's mutual-defence guarantee amid ongoing security concerns in Europe.
NATO Defence Spending Targets: From 2% (Wales, 2014) to 5% (The Hague, 2025)
NATO's defence-spending benchmarks have progressively risen. At the 2014 Wales Summit — held in the aftermath of Russia's annexation of Crimea — allies agreed to move toward spending at least 2% of GDP on defence within a decade, with at least 20% of that spending directed to major equipment and related R&D. At the 2025 Hague Summit, allies (except Spain, which secured an exemption) agreed to raise this to 5% of GDP annually by 2035, split into two components: at least 3.5% of GDP on core defence requirements meeting NATO Capability Targets, and up to 1.5% of GDP on broader resilience — protecting critical infrastructure, cyber defence, civil preparedness, and defence-industrial-base expansion.
Key Details
- Wales Summit target: 2% of GDP, first agreed 2014, informal deadline around 2024.
- Hague Summit target: 5% of GDP by 2035 (3.5% core + 1.5% broader resilience spending); trajectory to be reviewed in 2029.
- European Allies and Canada raised core defence investment by over $139 billion in 2025 alone, per NATO's own reporting.
The Ankara summit built on the Hague Summit's 5%-by-2035 pledge, with allies announcing more than $50 billion in new procurements and reaffirming intent to expand collective manufacturing capacity — the practical follow-through on the higher spending target.
NATO's Post-Cold-War Relevance and Threat Perception
NATO was founded as a Cold War containment alliance against the Soviet Union, and its rival bloc, the Warsaw Pact, dissolved in 1991 alongside the USSR. Since then, NATO has enlarged eastward (from 12 to 32 members) and periodically redefined its core mission — from out-of-area stabilisation operations (e.g., Afghanistan, Kosovo) to, since Russia's 2014 annexation of Crimea and 2022 invasion of Ukraine, a renewed focus on collective territorial defence in Europe.
Key Details
- Founding members (1949): 12, including the US, UK, France, Canada and others; most recent members: Finland (2023) and Sweden (2024), both prompted by the 2022 Russia-Ukraine war.
- NATO's civilian head is the Secretary General; its senior military body is the Military Committee, supported by SHAPE for operational command.
- India is not a NATO member and maintains an independent, non-aligned foreign policy approach toward the alliance, engaging bilaterally with individual member states rather than the bloc as a whole.
The Ankara declaration's characterisation of Russia as a "long-term threat" reflects NATO's post-2014/2022 reorientation toward territorial collective defence, a shift from its earlier post-Cold-War focus on expeditionary and counter-terrorism operations.
- North Atlantic Treaty (Washington Treaty) signed: 4 April 1949; NATO headquarters: Brussels.
- Current NATO membership: 32 countries (most recent: Finland 2023, Sweden 2024).
- Article 5 collective-defence clause invoked once: by the US, post-9/11 (2001).
- NATO defence-spending targets: 2% of GDP (Wales Summit, 2014) → 5% of GDP by 2035 (Hague Summit, 2025; 3.5% core + 1.5% broader resilience), with Spain exempted.
- 2026 Ankara Summit pledge: approximately €70 billion ($80 billion) in support to Ukraine for 2026, with "at least equivalent" support pledged for 2027.
- European Allies and Canada increased core defence investment by more than $139 billion in 2025.