The U.S. military carried out a fourth consecutive night of strikes and reinstated a blockade of Iranian shipping on July 13 [1].
This escalation threatens the stability of global energy markets by restricting access to the Strait of Hormuz, one of the world's most critical maritime chokepoints.
Live vessel-tracker footage indicates that traffic in the narrow waterway between Oman and Iran has fallen to its lowest level in five weeks [4, 5]. Some reports suggest the volume is the lowest in more than a month [4]. The U.S. strikes aim to degrade Iran's ability to attack commercial shipping and pressure Tehran following previous Iranian attacks [1, 2].
President Donald Trump reinstated the blockade to compel Iran to cease hostile actions [1, 2]. However, the president has called off a planned 20% fee on shipping through the Strait [6].
In response, Iranian officials have signaled a hardening stance. Mohammad Bagher Ghalibaf, the Speaker of the Iranian Parliament, said the era of "one-sided deals" was over and warned that those who fail to keep their word would "pay the price" [0]. Iran has further warned it could block additional energy routes in retaliation for the U.S. actions [1, 2].
The volatility in the region has already resulted in casualties. A UAE official said the UAE calls the attack "brazen" after one person died and eight others were injured [2].
While the U.S. military maintains the blockade of Iranian vessels, contradictory reports exist regarding the general status of the waterway. Some sources state the U.S. considers the Strait open to all ship traffic except for those from Iran [0], while others focus on the reinstated blockade as a primary restrictive measure [1].
“the era of 'one-sided deals' was over”
The reinstatement of the shipping blockade combined with sustained military strikes marks a shift toward maximum pressure tactics. By targeting Iranian shipping and degrading military capabilities, the U.S. is attempting to secure commercial lanes, but the resulting drop in traffic and Iran's threats to close more energy routes could trigger a spike in global oil prices and increase the risk of a broader regional conflict.
