U.S. blockade has turned back six merchant ships leaving Strait of Hormuz

The Washington Post reports that the U.S. military has turned back six merchant ships attempting to leave the Strait of Hormuz as part of a naval blockade ordered by President Trump, with more than a dozen American warships positioned in the Gulf of Oman and Arabian Sea acting as a "net" to enforce the restrictions on Iranian ports. The article is sourced from named U.S. officials and bylined to Tara Copp, a national security correspondent with established credibility, lending institutional authority to the reporting. Corroboration from Reuters, BBC, and Bloomberg confirms the basic facts—six ships turned back on the first day—though Reuters shipping data notes that overall Strait traffic was minimally disrupted on day one, with at least eight ships including Iran-linked tankers crossing, adding nuance to the blockade's initial operational impact that the Post's description does not explicitly address. Watch for escalation indicators, Iranian responses to the blockade, and longer-term shipping disruption patterns, as well as Trump's stated possibility of renewed Iran negotiations within days, which could alter the blockade's duration or terms.