US-Israeli Strikes Escalate Tensions, Market Gauges Direct Entry

US-Israeli Strikes Escalate Tensions, Market Gauges Direct Entry

US forces enter Iran by..? · Polymarket · Volume $1,554,448 December 31 48.0% · March 14 37.5% · March 7 37.0% · March 31 28.0% · March 1 20.5% · March 3 18.5% · February 28 2.5%

Where the market stands The market currently implies a low expectation for US forces to physically enter Iran. The highest probability for December 31 suggests a long-term risk of direct intervention. You can track all outcomes for this market on Polymarket.

Recent headlines A joint US-Israeli military campaign against Iran began on February 28, 2026. President Donald Trump announced "major combat operations in Iran". He stated the objective is to "defend the American people by eliminating imminent threats from the Iranian regime". Israel's Defense Minister Israel Katz called these actions a "pre-emptive attack". These strikes targeted various locations, including Tehran, Isfahan, Qom, Karaj, and Kermanshah. Iran responded swiftly by firing missiles at Israeli targets and US military bases in Gulf states, specifically Qatar, the United Arab Emirates, Kuwait, and Bahrain. Before these strikes, the US significantly increased its military presence in the Middle East. It deployed two aircraft carrier strike groups, including the USS Abraham Lincoln and the USS Gerald R. Ford, along with over 150 aircrafts to the region in February 2026. Nuclear negotiations between the US and Iran concluded in mid-February without a deal, prompting reports that the US military prepared for a broad campaign against Iran.

What's driving the odds The market is showing lower probabilities to immediate entry because current military actions primarily involve aerial and missile strikes, not ground invasions. US military officials previously stated they do not envision a ground invasion of Iran. However, the declared US objective of "regime change" creates a long-term tail risk for direct entry. This stated intent, combined with Iran's immediate retaliatory capabilities, drives the perceived likelihood of a prolonged conflict that could escalate beyond strikes.

Key factors to watch Official statements from the US or Iran regarding ground troop movements will influence market direction. The outcome of Iran's retaliatory strikes and subsequent responses from the US and Israel hold major importance. Discussions among regional allies about their involvement or non-involvement in further military actions could shift probabilities. International diplomatic efforts, potentially from Oman or Qatar, aiming to mediate a ceasefire could impact future escalations.

The picture right now The biggest uncertainty centers on whether the current aerial and missile exchanges will escalate to include US ground forces entering Iran. While current military operations do not involve ground troops, the declared intent by the US government to pressure regime change leaves open a path for future direct invasion.