US naval forces maintain an active blockade of Iranian ports and coastal areas in the Persian Gulf and Gulf of Oman, first imposed in April 2026 and reimposed in July after the June memorandum of understanding collapsed amid renewed strikes and ceasefire violations. President Trump has stated the blockade will continue until a comprehensive agreement is finalized, with naval assets enforcing restrictions on vessels linked to Iranian trade while monitoring Strait of Hormuz traffic. Recent developments include Iranian declarations of open passage conditional on US de-escalation, alongside ongoing diplomatic signals from Tehran and reported US redirection or interdiction of non-compliant shipping. Key variables for any US announcement ending enforcement include progress on nuclear talks, sanctions relief timelines, compliance with safe passage terms, and de-escalation in related regional fronts such as Lebanon. Scheduled or ad hoc diplomatic contacts and further military or maritime incidents within the resolution window could shift the timeline.