U.S. naval blockade begins
The U.S. Pentagon said Central Command will begin a naval blockade of maritime traffic entering and exiting Iranian ports, a step described as moving from coercive diplomacy to direct interdiction. (apnews.com) The announcement followed weekend talks in Islamabad that failed to produce a breakthrough, according to state and regional reports. (english.news.cn) Implementation timing was reported as starting around midnight AEST, and China urged calm and restraint in response. (abc.net.au)
The United States military said it will start blocking ships entering and leaving Iranian ports on Monday, widening pressure on Tehran after weekend talks failed. (apnews.com) United States Central Command said the blockade covers “all Iranian ports and coastal areas” and begins at 10 a.m. Eastern time on April 13, which is 5:30 p.m. in Iran. President Donald Trump had earlier framed the move more broadly around the Strait of Hormuz before the military narrowed the scope to traffic tied to Iran. (apnews.com) Australian Broadcasting Corporation reported the start time as around midnight Australian Eastern Standard Time, citing Central Command’s statement that the order applies to “all maritime traffic entering and exiting Iranian ports.” (abc.net.au) The order followed more than 21 hours of United States-Iran talks in Islamabad that ended without an agreement. Vice President J.D. Vance said Iran would not accept United States terms, while Iranian officials said Washington’s demands and military pressure blocked a deal. (time.com, english.news.cn) A naval blockade is an attempt to control shipping by stopping, searching, or turning away vessels at sea. In this case, Central Command said ships not going to Iranian ports would still be allowed to transit the Strait of Hormuz, a narrower rule than a full closure of the waterway. (navytimes.com, cbsnews.com) That distinction matters because the Strait of Hormuz is one of the world’s busiest oil chokepoints, linking Gulf producers to global markets. China, which bought most of Iran’s oil exports before the war, said any blockade there would run against the interests of the international community and urged “calm and restraint.” (usnews.com, al-monitor.com) The blockade also lands inside a fragile two-week ceasefire that began on April 8 and is due to expire on April 22. Associated Press reported the failed Islamabad talks raised immediate questions about what happens when that truce runs out. (usnews.com) Iran has cast the move as an unlawful attack on its shipping, and state-linked media said the United States shifted from diplomacy to direct interdiction. Britain has already said it is not supporting the blockade, while France and Britain are discussing a separate conference on freedom of navigation in the strait. (thehindu.com, legion.org) What happens next depends on enforcement at sea: whether the United States only turns back ships bound for Iran, whether Iran retaliates, and whether mediators can restart talks before the April 22 ceasefire deadline. (apnews.com, navytimes.com)
