Mearsheimer (2014): NATO expansion is the taproot of the Ukraine crisis, driven by the US and Europe.

Question

“...the United States and its European allies share most of the responsibility for the [Ukraine] crisis. The taproot of the trouble is NATO enlargement...”
—John Mearsheimer, “Why the Ukraine Crisis Is the West’s Fault,” Foreign Affairs, 18 August 2014

Answer 1

Fact‑Check: Mearsheimer’s Claim on NATO Enlargement and the Ukraine Crisis

1. Summary of Findings

Evidence shows NATO enlargement shaped Russian perceptions, but it is not the “taproot” of the Ukraine crisis. Primary documents confirm Russia cited NATO as a threat, yet they also show Russia made unilateral choices-annexing Crimea and fueling conflict in Donbas-that the UN condemned as illegal. Secondary analyses emphasize Ukrainian domestic politics, Russian strategic ambitions, and long‑standing efforts to control its neighborhood. NATO enlargement is a factor, but not the dominant cause.

2. Primary Sources (with links)

Mearsheimer (2014) – States NATO enlargement is the “taproot” and the West bears “most” responsibility. https://www.jstor.org/stable/24483306

NATO Bucharest Summit Declaration (2008) – Declares Ukraine and Georgia “will become members of NATO,” confirming political intent but not imminent accession. https://www.nato.int/cps/en/natolive/official_texts_8443.htm

Putin’s Crimea Speech (18 March 2014) – Frames NATO as a threat and uses it to justify annexation. https://www.praguepost.com/eu-news/37554-full-text-of-putin-s-speech-on-crimea

3. Secondary Sources (with links)

UK Parliament Timeline (2014–2022) – Shows crisis triggered by domestic protests and Yanukovych’s ouster. https://commonslibrary.parliament.uk/research-briefings/cbp-9476/

UK Parliament NATO–Ukraine Brief (2024) – Shows Ukraine’s NATO path was slow and contested. https://commonslibrary.parliament.uk/research-briefings/cbp-9819/

4. Potential Biases

• Mearsheimer: Realist theory predisposes him to blame Western expansion.
• NATO: Institutional interest in portraying enlargement as stabilizing.
• Putin/Kremlin: Strong incentive to justify annexation.

5. Evidence Supporting Mearsheimer

• NATO expanded eastward and formally opened the door to Ukraine in 2008.
• Russian leadership repeatedly cited NATO as a threat.
• Western policymakers underestimated possible Russian reactions.

6. Evidence Undermining the Claim

• UN condemned Russia’s annexation as illegal.
• Immediate triggers were Ukrainian domestic events, not NATO actions.
• Ukraine’s NATO path was slow and uncertain.
• Russia intervened in non‑NATO states (e.g., Georgia), suggesting broader ambitions.
• Analyses highlight Russian ideology and strategic goals as central.

7. Contacting the Claimant

I cannot directly contact John Mearsheimer, but he has continued to publicly defend his argument in later talks.