Will the U.S. invade Iran before 2027?

Platform comparison

Market context

The underlying event is whether the United States will launch a full military offensive to seize and control any part of Iranian territory before the end of 2026. Current crowd-implied probability sits at 13% for "Yes", positioning the invasion as the underdog outcome. While the consensus leans heavily toward "No", value may exist on the contrarian side given the recent escalation in hostilities and the possibility of a rapid shift in strategic intent.

Historically, US-Iran conflicts have involved strikes and proxy warfare rather than territorial occupation, as seen in the 1988 Strait of Hormuz incident and the 2015 nuclear deal framework[3][7]. However, the joint "Operation Epic Fury" launched on 28 February 2026 by the US and Israel marked a significant departure, targeting Iran’s ballistic programme and aiming for regime change[1][2]. Although a ceasefire was announced on 14 June 2026, reports indicate the US has continued air strikes despite the memorandum, suggesting the truce remains fragile and could collapse into broader offensive action[4][5].

Traders should monitor Trump’s public statements, US Central Command announcements regarding the Strait of Hormuz, and any delays in the 60-day follow-on negotiations mediated by Pakistan and Qatar[1][4]. A recent breach involving Iranian attacks on US warships and a commercial vessel has already triggered CENTCOM strikes, raising the risk of escalation[4]. If the ceasefire is declared violated again, the probability of a full-scale invasion intended to establish control could surge sharply above the current 13% baseline.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.