The U.S. blockade has intercepted dozens of vessels since mid-April. But a small number of ships with Iranian cargo are still sailing.

The murkiness in the Strait of Hormuz reveals a darker side of global shipping: Some vessels don’t want to be found.

With President Trump’s visit to Beijing looming, China is pushing Iran to negotiate even as its companies export material that could be used by Iran’s military.

A 19th-century military strategist should be required reading at the Pentagon.

The war in Iran has disrupted supplies of diesel, used to power trucks and heavy equipment, much more than gasoline, which is primarily used in passenger cars.