US threatens ‘indefinite’ blockade against Iran: How long can it last?

What Happened

The United States has maintained a naval blockade of Iranian ports and the Strait of Hormuz, with Secretary of Defense Pete Hegseth stating on Thursday that the US military can sustain this posture indefinitely through ship rotations. Simultaneously, the US Treasury Secretary Scott Bessent announced plans for unprecedented economic isolation measures against Iran to be unveiled next week. Iran’s Persian Gulf Strait Authority (PGSA) maintains that the Strait of Hormuz remains closed to shipping, contradicting claims by President Donald Trump that the US has full control of the waterway. Meanwhile, the operational status of the USS Abraham Lincoln has come under intense scrutiny following reports in the Navy Times and Stars and Stripes regarding severe crew burnout, mental health crises, and supply shortages after nearly seven months at sea. US lawmakers, including Senator Richard Blumenthal and Representative Mike Levin, have demanded investigations into the vessel's conditions, while Senate Minority Leader Chuck Schumer has called for the resignation of Secretary Hegseth. The US Central Command (CENTCOM) has formally denied reports circulating in Iranian media alleging that seven US Navy personnel were killed during an onboard incident.

Key Actors

Why It Matters

The standoff represents a significant escalation in US-Iran maritime and economic warfare, with the blockade of the Strait of Hormuz threatening global energy transit. The internal crisis aboard the USS Abraham Lincoln highlights the potential limits of US naval endurance and the political risks associated with sustained high-tempo deployments in the region, creating domestic friction within the US government.

Watch For

Monitor the upcoming announcement of new US economic measures against Iran scheduled for next week, as well as any official Department of Defense responses to the congressional inquiries regarding the USS Abraham Lincoln. Additionally, observe whether the PGSA maintains its blockade of the Strait of Hormuz or if shipping traffic resumes.