The Washington Post reports:

Shipping traffic through the Strait of Hormuz remains constrained a week after the United States and Iran said they would facilitate vessel passage under a two-week ceasefire agreement. Instead, tensions have escalated. After Iran said ships must coordinate with its forces — and, in some cases, pay a toll — President Donald Trump called the demands “extortion” and announced Sunday that the United States would block ships entering or exiting Iranian ports, adding pressure to an already fragile truce.

But even as Washington seeks to squeeze Iran economically, Tehran retains a powerful advantage: geography. Over six weeks of conflict, Iran has halted virtually all traffic in the strait by laying mines, according to its military forces, and exploiting the vulnerability created by its terrain. Even under a U.S. blockade, these factors allow Iran to continue exerting influence over who crosses — and at what risk.

That risk, more than any formal closure, is what is keeping ships away. According to data from Kpler, only nine vessels have crossed the strait daily on average since the ceasefire, compared with the prewar traffic of more than 130 ships. “De facto, the ceasefire has done absolutely nothing to change the situation [in the strait]. None whatsoever,” said Lars Jensen of Vespucci Maritime, a container shipping consultancy based in Copenhagen. [Continue reading…]