A leaked email from the Pentagon, acquired by Reuters, details potential measures to penalize NATO partners that did not endorse US military actions against Iran. These measures include limiting intelligence sharing, decreasing troop presence, and imposing economic sanctions. The document highlights a significant rift within NATO regarding the US-led strikes in Iran, with multiple European nations openly opposing America's unilateral approach. Experts caution that this list of punitive actions could irreparably harm military cohesion between the US and Europe.