Skip to content
GeopoliticsUS-IranIsraelIran

Will the US officially declare war on Iran by...?

Very unlikely

$7.6M traded

Probability over time

last 30 days
6%Yes · +0 pts over period6%

What this means

Traders currently price this at 6% — the market's collective estimate that it happens. The market leans toward no. The odds have been broadly stable over the last week.

How this resolves

This market will resolve to "Yes" if the United States formally declares war on Iran through an act of Congress between market creation and the specified date, 11:59 PM ET. Otherwise, this market will resolve to "No." To qualify, Congress must pass a formal declaration of war, consistent with its constitutional authority under Article I, Section 8. Authorizations for the use of military force (AUMFs), executive orders, presidential statements, or military actions do not qualify unless accompanied by a formal declaration of war enacted by Congress and signed into law. The resolution source will be a clear consensus of credible reporting.

Resolves: Dec 31, 2026

More in Geopolitics