Washington moves to secure global shipping lanes as nuclear dispute with Tehran deepens
April 12, 2026: Donald Trump has announced a sweeping naval blockade of the Strait of Hormuz, dramatically escalating tensions with Iran following the collapse of nuclear negotiations. Declaring the move necessary to ensure safe passage for global shipping, Trump accused Iran of creating uncertainty in international waters and warned that any threats to vessels would be met with “overwhelming force.” He also indicated that allied nations could join the blockade effort.
The decision comes after nearly 20 hours of talks failed to resolve key disagreements, particularly over Iran’s nuclear programme. While Trump claimed that progress had been made on other issues, he stressed that Tehran’s refusal to abandon its nuclear ambitions remained the primary obstacle. The US has maintained that Iran must not acquire nuclear weapons, signalling a hardline stance even as diplomatic options narrow.
Trump also highlighted Pakistan’s role in facilitating discussions, mentioning Asim Munir and Shehbaz Sharif. He urged Iran to reopen the vital oil route, warning that continued disruption could harm its global standing. The escalation has raised fresh concerns worldwide, given the Strait’s importance for energy supplies and international trade.