Market icon
World·NATO

Will any country leave NATO by...?

Market icon
World·NATO

Will any country leave NATO by...?

$812,855 Vol.

Jun 30, 2026
Polymarket

$812,855 Vol.

Polymarket

June 30, 2026

$447,252 Vol.

4%

December 31, 2026

$88,562 Vol.

17%

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, 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.Tensions in the US-Iran conflict have strained NATO, as allies including France, Italy, and Spain denied airspace for American operations in the Strait of Hormuz, prompting President Trump to threaten US withdrawal under Article 13 of the North Atlantic Treaty, which requires one-year notice to the US as depositary. A 2024 law mandates two-thirds Senate approval or congressional action for any US exit, imposing high barriers absent to date. No member has issued formal denunciation, per alliance records. Ongoing ceasefire negotiations and potential NATO summits with Secretary-General Rutte loom as pivotal diplomatic developments that could de-escalate rifts or heighten exit risks for traders assessing alliance durability through 2026.

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.
Volume
$812,855
End Date
Dec 31, 2026
Market Opened
Oct 9, 2025, 6:24 PM ET

Resolver

0x65070BE91...
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 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, 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.Tensions in the US-Iran conflict have strained NATO, as allies including France, Italy, and Spain denied airspace for American operations in the Strait of Hormuz, prompting President Trump to threaten US withdrawal under Article 13 of the North Atlantic Treaty, which requires one-year notice to the US as depositary. A 2024 law mandates two-thirds Senate approval or congressional action for any US exit, imposing high barriers absent to date. No member has issued formal denunciation, per alliance records. Ongoing ceasefire negotiations and potential NATO summits with Secretary-General Rutte loom as pivotal diplomatic developments that could de-escalate rifts or heighten exit risks for traders assessing alliance durability through 2026.

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.
Volume
$812,855
End Date
Dec 31, 2026
Market Opened
Oct 9, 2025, 6:24 PM ET

Resolver

0x65070BE91...
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.

Related

Market icon

Will US withdraw from NATO before 2027?

12%
Market icon

NATO dissolves before 2027?

6%
Market icon

Will NATO countries clash with each other before 2027?

9%

Beware of external links.

Frequently Asked Questions

"Will any country leave NATO by...?" is a prediction market on Polymarket with 3 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "December 31, 2026" at 17%, followed by "June 30, 2026" at 4%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 17¢ implies that the market collectively assigns a 17% 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 $812.9K 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 3 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.

The current frontrunner for "Will any country leave NATO by...?" is "December 31, 2026" at 17%, meaning the market assigns a 17% chance to that outcome. The next closest outcome is "June 30, 2026" at 4%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

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.