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World·Nato

Will any country leave NATO by...?

Market icon
World·Nato

Will any country leave NATO by...?

$419,570 Vol.

Dec 31, 2025
Polymarket

$419,570 Vol.

Polymarket

June 30, 2026

$142,529 Vol.

4%

This market will resolve to "Yes" if any member state formally withdraws from NATO or provides an official notice of denunciation to NATO by June 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". A notice of denunciation refers to the submission of a notice of withdrawal as per Article 13 of the North Atlantic Treaty. A country's exit from NATO’s integrated military command structure will not be sufficient to resolve this market to "Yes". That country must either withdraw or submit a notice of denunciation to trigger a "Yes" resolution. The resolution source will be official information from the relevant government and NATO, however a consensus of credible reporting may also be used.This market will resolve to "Yes" if any member state formally withdraws from NATO or provides an official notice of denunciation to NATO by December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No". A notice of denunciation refers to the submission of a notice of withdrawal as per Article 13 of the North Atlantic Treaty. A country's exit from NATO’s integrated military command structure will not be sufficient to resolve this market to "Yes". That country must either withdraw or submit a notice of denunciation to trigger a "Yes" resolution. The resolution source will be official information from the relevant government and NATO, however a consensus of credible reporting may also be used.US President Donald Trump's March 18 statement considering a US withdrawal from NATO without congressional approval has intensified trader focus on alliance fissures, amid ongoing American personnel reductions—around 200 officers pulled from NATO structures since January 2026 and generals rotated from key commands. French lawmakers advanced a parliamentary resolution in January to debate exiting the alliance, citing US foreign policy shifts, though no vote has passed. No member has invoked Article 13's one-year withdrawal notice, and European allies are forming contingency groups, including a 22-nation Strait of Hormuz task force announced March 23 by NATO Secretary General Mark Rutte. Upcoming NATO defense ministerial meetings could clarify US commitments, but legal and political hurdles remain significant barriers to any exit before year-end.

US President Donald Trump's March 18 statement considering a US withdrawal from NATO without congressional approval has intensified trader focus on alliance fissures, amid ongoing American personnel reductions—around 200 officers pulled from NATO structures since January 2026 and generals rotated from key commands. French lawmakers advanced a parliamentary resolution in January to debate exiting the alliance, citing US foreign policy shifts, though no vote has passed. No member has invoked Article 13's one-year withdrawal notice, and European allies are forming contingency groups, including a 22-nation Strait of Hormuz task force announced March 23 by NATO Secretary General Mark Rutte. Upcoming NATO defense ministerial meetings could clarify US commitments, but legal and political hurdles remain significant barriers to any exit before year-end.

Experimental AI-generated summary referencing Polymarket data · Updated
This market will resolve to "Yes" if any member state formally withdraws from NATO or provides an official notice of denunciation to NATO by June 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No". A notice of denunciation refers to the submission of a notice of withdrawal as per Article 13 of the North Atlantic Treaty. A country's exit from NATO’s integrated military command structure will not be sufficient to resolve this market to "Yes". That country must either withdraw or submit a notice of denunciation to trigger a "Yes" resolution. The resolution source will be official information from the relevant government and NATO, however a consensus of credible reporting may also be used.This market will resolve to "Yes" if any member state formally withdraws from NATO or provides an official notice of denunciation to NATO by December 31, 2025, 11:59 PM ET. Otherwise, this market will resolve to "No". A notice of denunciation refers to the submission of a notice of withdrawal as per Article 13 of the North Atlantic Treaty. A country's exit from NATO’s integrated military command structure will not be sufficient to resolve this market to "Yes". That country must either withdraw or submit a notice of denunciation to trigger a "Yes" resolution. The resolution source will be official information from the relevant government and NATO, however a consensus of credible reporting may also be used.US President Donald Trump's March 18 statement considering a US withdrawal from NATO without congressional approval has intensified trader focus on alliance fissures, amid ongoing American personnel reductions—around 200 officers pulled from NATO structures since January 2026 and generals rotated from key commands. French lawmakers advanced a parliamentary resolution in January to debate exiting the alliance, citing US foreign policy shifts, though no vote has passed. No member has invoked Article 13's one-year withdrawal notice, and European allies are forming contingency groups, including a 22-nation Strait of Hormuz task force announced March 23 by NATO Secretary General Mark Rutte. Upcoming NATO defense ministerial meetings could clarify US commitments, but legal and political hurdles remain significant barriers to any exit before year-end.

US President Donald Trump's March 18 statement considering a US withdrawal from NATO without congressional approval has intensified trader focus on alliance fissures, amid ongoing American personnel reductions—around 200 officers pulled from NATO structures since January 2026 and generals rotated from key commands. French lawmakers advanced a parliamentary resolution in January to debate exiting the alliance, citing US foreign policy shifts, though no vote has passed. No member has invoked Article 13's one-year withdrawal notice, and European allies are forming contingency groups, including a 22-nation Strait of Hormuz task force announced March 23 by NATO Secretary General Mark Rutte. Upcoming NATO defense ministerial meetings could clarify US commitments, but legal and political hurdles remain significant barriers to any exit before year-end.

Experimental AI-generated summary referencing Polymarket data · Updated

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Frequently Asked Questions

"Will any country leave NATO by...?" is a prediction market on Polymarket with 2 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "June 30, 2026" at 4%, followed by "December 31, 2025" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 4¢ implies that the market collectively assigns a 4% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Will any country leave NATO by...?" has generated $419.6K in total trading volume since the market launched on Feb 13, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Will any country leave NATO by...?," browse the 2 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

This is a wide-open market. The current leader for "Will any country leave NATO by...?" is "June 30, 2026" at just 4%, with "December 31, 2025" close behind at 0%. With no outcome commanding a strong majority, traders see this as highly uncertain, which can present unique trading opportunities. These odds update in real-time, so bookmark this page to watch how the probabilities evolve.

The resolution rules for "Will any country leave NATO by...?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.