Recent diplomatic signals between the United States and Iran, including hints of revived talks at the UN General Assembly and U.S. openness to negotiations if prospects for success exist, have reinforced trader expectations against a full-scale U.S. invasion before 2027. The conflict that began with February 2026 airstrikes has evolved into a war of attrition featuring limited exchanges, sanctions, and blockades rather than ground operations, despite periodic rhetoric about expanded strikes or seizing strategic sites like islands in the Strait of Hormuz. Analysts note that a major ground campaign would require hundreds of thousands of troops, face severe logistical and political risks, and diverge from the current emphasis on air power, economic pressure, and mediated de-escalation. With the 60-day negotiation window from earlier memoranda having expired without breakthrough, ongoing attrition and diplomatic channels continue to shape the 84.5% implied probability for no invasion.