Naval blockades are among the oldest weapons of war, using sea control to cut supplies and force an enemy’s surrender.

U.S. forces now claim to have redirected 45 ships and frozen $6 billion in Iranian oil revenue.

Maritime and military law experts say an expansion of the naval blockade announced last week raises legal and practical questions but has ample historical precedent.

The price of filling a gas tank, booking a flight, or shipping a container of goods just collided with a single geographic fact: the Strait of Hormuz, a waterway barely 21 miles wide at its narrowest navigable point,

Increasing prices as a result of the war are expected to cost American households thousands of dollars. Trump says he’s holding out for Iran to disavow their nuclear program.

Welcome to the Daily News Brief, CFR’s flagship morning newsletter summarizing the top global news and analysis of the day. Top of the Agenda Trump rejected Iran’s latest peace proposal and vowed to continue the U.

The United States’ blockade of Iranian ports has been “fully implemented” and put a halt to most of Tehran’s economic activity in just a day and a half, the head of US Central Command said Wednesday.

Sanctioned tankers are allegedly disguising Iranian oil shipments as Iraqi cargo while Trump doubles down on the naval blockade to squeeze Tehran.

The U.S. Treasury said it will “not hesitate to take action against those supporting Iran’s military, including through ‘toll’ payments.”