Following Spain's March 30 announcement closing its airspace to U.S. military aircraft involved in operations against Iran, no other EU country has enacted a comparable blanket restriction on overflights or base access by mid-April. Partial denials reported in Italy for specific airbase landings and case-by-case reviews in France have not escalated to full prohibitions, per official statements. NATO solidarity among frontline states like Poland and Germany sustains U.S. flight permissions, while diplomatic pressures and alliance commitments deter further action amid the ongoing U.S.-Iran conflict. With under three weeks to April 30, traders' 87.5% implied probability on No reflects this stasis and high barriers to additional restrictions.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated$20,709 Vol.
$20,709 Vol.
Apr 30, 2026
$20,709 Vol.
$20,709 Vol.
Apr 30, 2026
Austria announced this month that U.S. military planes involved in Operation Epic Fury could not use its airspace, joining other EU countries in restricting U.S. military aircraft operations (see: https://thehill.com/policy/international/5815053-austria-defies-trump-war/).
This market will resolve to “Yes” if any EU member state that has not yet applied such a restriction officially announces that U.S. military aircraft are not permitted to use its airspace or land in its territory, or announces that U.S. military aircraft are generally not allowed to use certain military bases or airports within its jurisdiction, by April 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
A restriction applying only to a subset of U.S. military aircraft (e.g. only aircraft involved in Operation Epic Fury) will qualify.
A qualifying restriction must be a standing policy; isolated instances of access denial will not count. For example: Italy’s isolated refusal to allow U.S. military aircraft to use Sigonella airbase (see: https://www.reuters.com/business/aerospace-defense/italy-refuses-us-aircraft-use-sicily-base-middle-east-operations-source-says-2026-03-31/) would not count.
An overwhelming consensus of credible reporting that another EU country has implemented a qualifying restriction on U.S. military aircraft will also suffice for a “Yes” resolution. Mere statements from U.S. officials, however, will not qualify.
The primary resolution source for this market will be official information from the relevant countries; however, a consensus of credible reporting may also be used.
Following Spain's March 30 announcement closing its airspace to U.S. military aircraft involved in operations against Iran, no other EU country has enacted a comparable blanket restriction on overflights or base access by mid-April. Partial denials reported in Italy for specific airbase landings and case-by-case reviews in France have not escalated to full prohibitions, per official statements. NATO solidarity among frontline states like Poland and Germany sustains U.S. flight permissions, while diplomatic pressures and alliance commitments deter further action amid the ongoing U.S.-Iran conflict. With under three weeks to April 30, traders' 87.5% implied probability on No reflects this stasis and high barriers to additional restrictions.
Austria announced this month that U.S. military planes involved in Operation Epic Fury could not use its airspace, joining other EU countries in restricting U.S. military aircraft operations (see: https://thehill.com/policy/international/5815053-austria-defies-trump-war/).
This market will resolve to “Yes” if any EU member state that has not yet applied such a restriction officially announces that U.S. military aircraft are not permitted to use its airspace or land in its territory, or announces that U.S. military aircraft are generally not allowed to use certain military bases or airports within its jurisdiction, by April 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
A restriction applying only to a subset of U.S. military aircraft (e.g. only aircraft involved in Operation Epic Fury) will qualify.
A qualifying restriction must be a standing policy; isolated instances of access denial will not count. For example: Italy’s isolated refusal to allow U.S. military aircraft to use Sigonella airbase (see: https://www.reuters.com/business/aerospace-defense/italy-refuses-us-aircraft-use-sicily-base-middle-east-operations-source-says-2026-03-31/) would not count.
An overwhelming consensus of credible reporting that another EU country has implemented a qualifying restriction on U.S. military aircraft will also suffice for a “Yes” resolution. Mere statements from U.S. officials, however, will not qualify.
The primary resolution source for this market will be official information from the relevant countries; however, a consensus of credible reporting may also be used.
This market will resolve to “Yes” if any EU member state that has not yet applied such a restriction officially announces that U.S. military aircraft are not permitted to use its airspace or land in its territory, or announces that U.S. military aircraft are generally not allowed to use certain military bases or airports within its jurisdiction, by April 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
A restriction applying only to a subset of U.S. military aircraft (e.g. only aircraft involved in Operation Epic Fury) will qualify.
A qualifying restriction must be a standing policy; isolated instances of access denial will not count. For example: Italy’s isolated refusal to allow U.S. military aircraft to use Sigonella airbase (see: https://www.reuters.com/business/aerospace-defense/italy-refuses-us-aircraft-use-sicily-base-middle-east-operations-source-says-2026-03-31/) would not count.
An overwhelming consensus of credible reporting that another EU country has implemented a qualifying restriction on U.S. military aircraft will also suffice for a “Yes” resolution. Mere statements from U.S. officials, however, will not qualify.
The primary resolution source for this market will be official information from the relevant countries; however, a consensus of credible reporting may also be used.
Market Opened: Apr 6, 2026, 5:38 PM ET
Volume
$20,709End Date
Apr 30, 2026Market Opened
Apr 6, 2026, 5:38 PM ETResolver
0x65070BE91...Austria announced this month that U.S. military planes involved in Operation Epic Fury could not use its airspace, joining other EU countries in restricting U.S. military aircraft operations (see: https://thehill.com/policy/international/5815053-austria-defies-trump-war/).
This market will resolve to “Yes” if any EU member state that has not yet applied such a restriction officially announces that U.S. military aircraft are not permitted to use its airspace or land in its territory, or announces that U.S. military aircraft are generally not allowed to use certain military bases or airports within its jurisdiction, by April 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
A restriction applying only to a subset of U.S. military aircraft (e.g. only aircraft involved in Operation Epic Fury) will qualify.
A qualifying restriction must be a standing policy; isolated instances of access denial will not count. For example: Italy’s isolated refusal to allow U.S. military aircraft to use Sigonella airbase (see: https://www.reuters.com/business/aerospace-defense/italy-refuses-us-aircraft-use-sicily-base-middle-east-operations-source-says-2026-03-31/) would not count.
An overwhelming consensus of credible reporting that another EU country has implemented a qualifying restriction on U.S. military aircraft will also suffice for a “Yes” resolution. Mere statements from U.S. officials, however, will not qualify.
The primary resolution source for this market will be official information from the relevant countries; however, a consensus of credible reporting may also be used.
Following Spain's March 30 announcement closing its airspace to U.S. military aircraft involved in operations against Iran, no other EU country has enacted a comparable blanket restriction on overflights or base access by mid-April. Partial denials reported in Italy for specific airbase landings and case-by-case reviews in France have not escalated to full prohibitions, per official statements. NATO solidarity among frontline states like Poland and Germany sustains U.S. flight permissions, while diplomatic pressures and alliance commitments deter further action amid the ongoing U.S.-Iran conflict. With under three weeks to April 30, traders' 87.5% implied probability on No reflects this stasis and high barriers to additional restrictions.
Austria announced this month that U.S. military planes involved in Operation Epic Fury could not use its airspace, joining other EU countries in restricting U.S. military aircraft operations (see: https://thehill.com/policy/international/5815053-austria-defies-trump-war/).
This market will resolve to “Yes” if any EU member state that has not yet applied such a restriction officially announces that U.S. military aircraft are not permitted to use its airspace or land in its territory, or announces that U.S. military aircraft are generally not allowed to use certain military bases or airports within its jurisdiction, by April 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
A restriction applying only to a subset of U.S. military aircraft (e.g. only aircraft involved in Operation Epic Fury) will qualify.
A qualifying restriction must be a standing policy; isolated instances of access denial will not count. For example: Italy’s isolated refusal to allow U.S. military aircraft to use Sigonella airbase (see: https://www.reuters.com/business/aerospace-defense/italy-refuses-us-aircraft-use-sicily-base-middle-east-operations-source-says-2026-03-31/) would not count.
An overwhelming consensus of credible reporting that another EU country has implemented a qualifying restriction on U.S. military aircraft will also suffice for a “Yes” resolution. Mere statements from U.S. officials, however, will not qualify.
The primary resolution source for this market will be official information from the relevant countries; however, a consensus of credible reporting may also be used.
This market will resolve to “Yes” if any EU member state that has not yet applied such a restriction officially announces that U.S. military aircraft are not permitted to use its airspace or land in its territory, or announces that U.S. military aircraft are generally not allowed to use certain military bases or airports within its jurisdiction, by April 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”.
A restriction applying only to a subset of U.S. military aircraft (e.g. only aircraft involved in Operation Epic Fury) will qualify.
A qualifying restriction must be a standing policy; isolated instances of access denial will not count. For example: Italy’s isolated refusal to allow U.S. military aircraft to use Sigonella airbase (see: https://www.reuters.com/business/aerospace-defense/italy-refuses-us-aircraft-use-sicily-base-middle-east-operations-source-says-2026-03-31/) would not count.
An overwhelming consensus of credible reporting that another EU country has implemented a qualifying restriction on U.S. military aircraft will also suffice for a “Yes” resolution. Mere statements from U.S. officials, however, will not qualify.
The primary resolution source for this market will be official information from the relevant countries; however, a consensus of credible reporting may also be used.
Volume
$20,709End Date
Apr 30, 2026Market Opened
Apr 6, 2026, 5:38 PM ETResolver
0x65070BE91...Following Spain's March 30 announcement closing its airspace to U.S. military aircraft involved in operations against Iran, no other EU country has enacted a comparable blanket restriction on overflights or base access by mid-April. Partial denials reported in Italy for specific airbase landings and case-by-case reviews in France have not escalated to full prohibitions, per official statements. NATO solidarity among frontline states like Poland and Germany sustains U.S. flight permissions, while diplomatic pressures and alliance commitments deter further action amid the ongoing U.S.-Iran conflict. With under three weeks to April 30, traders' 87.5% implied probability on No reflects this stasis and high barriers to additional restrictions.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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