After the failure of talks with Tehran, Washington takes a spectacular step in one of the world's most strategic maritime passages.
Donald Trump announced on Sunday the 12th that the United States would engage “with immediate effect” a blockade of the Strait of Hormuz. In a lengthy message published on Truth Social, the US president stated that the US Navy would prevent ships from entering or leaving this vital maritime corridor, marking a new escalation in the confrontation between Washington and Tehran.
A brutal announcement after unsuccessful negotiations
This statement follows direct talks between US and Iranian officials in Islamabad, Pakistan. These discussions ended without an agreement, particularly on the issue of Iran's nuclear program, despite several hours of talks and a situation already extremely tense since the start of the war between Iran, the United States, and their regional allies.
Donald Trump justified his decision by accusing Iran of imposing tolls on ships authorized to transit the Strait. He also indicated that US forces could intercept, on the high seas, vessels that had paid such payments to Tehran, asserting that no ship participating in this system would be guaranteed safe passage.
Hormuz, the planet's energy lock
The Strait of Hormuz is a critical point in the global energy trade. Approximately 20% of global oil shipments typically transit through this waterway. Any sustained disruption to navigation in this area can therefore have immediate repercussions on oil markets, maritime freight, and, more broadly, on the global economy.
Even before this blockade announcement, traffic in the strait was already severely disrupted. The American military was in the process of “prepare the conditions” to secure the area and begin demining operations, following the laying of mines attributed to Iran. Two American warships were involved in this initial phase, while Washington stated its intention to reopen a safe commercial passage.
An already fragile ceasefire
Donald Trump's announcement comes as a two-week ceasefire agreed upon earlier in the month already appeared very fragile. The truce was set to expire on April 22, 2026, and the lack of an agreement in Islamabad was already casting serious doubt on its extension. In this context, the announced blockade risks further increasing diplomatic and military pressure throughout the region.
The fault lines remain deep. Washington still demands that Iran renounce any military nuclear ambitions, while Tehran continues to assert that its program is strictly peaceful. Neither side appears to have significantly budged from its position during the talks held in Pakistan.
