U.S. Central Command began implementing a blockade of all maritime traffic entering and exiting Iranian-controlled waters on the morning of April 13, following the collapse of high-level diplomatic negotiations in Islamabad.
The military action follows a failed attempt by Vice President JD Vance and Iranian officials to reach a diplomatic settlement. Speaking after the conclusion of the talks, Vance stated that the U.S. Delegation departed Pakistan without an agreement, citing a failure to resolve fundamental security requirements.
According to Vance, the United States requires an “affirmative commitment” from Tehran that Iran will not pursue a nuclear weapon or the technical tools necessary to rapidly develop one. He noted that the U.S. Position on these “red lines” remained unchanged throughout the proceedings.
Iranian officials characterized the breakdown as a failure of American diplomacy. The Speaker of the Iranian Parliament, who participated in the Islamabad meetings, asserted that the U.S. Delegation failed to establish the necessary trust with the Iranian delegation to secure a deal.
Foreign Minister Abbas Araghchi provided further detail on the collapse, claiming that the two sides were “inches away” from signing an “Islamabad MoU.” Araghchi attributed the failure to what he described as “maximalism, shifting goalposts and blockade” from the American side.
In response to the diplomatic impasse, President Donald Trump issued directives to the U.S. Navy to interdict any vessel in international waters found to have paid tolls to Iran. The President characterized these payments as “illegal tolls” and declared that such vessels would no longer have safe passage on the high seas.
The presidential order also includes the immediate commencement of operations to destroy naval mines laid by Iran in the Strait of Hormuz. President Trump warned that any Iranian forces firing upon U.S. Assets or peaceful maritime vessels would be met with lethal force.
The blockade, confirmed by USCENTCOM, marks a significant escalation in the maritime corridor, as the U.S. Military moves to enforce the restrictions on Iranian shipping lanes while the diplomatic channel in Islamabad remains closed.
