US Central Command Prepares to Enforce Naval Blockade of Iranian Ports Following Breakdown of Peace Talks

The US Navy begins a total blockade of Iranian ports starting Monday. Learn how the blockade works, its impact on oil shipping, and the legal controversy surrounding it.

By: AXL Media

Published: Apr 13, 2026, 5:35 AM EDT

Source: Information for this report was sourced from the BBC

Strategic Shift Toward Military Enforcement in the Persian Gulf

The United States has escalated its military posture in the Middle East by initiating a formal naval blockade against Iran. US Central Command (Centcom) confirmed that implementation would begin at 10:00 EDT (15:00 BST) on Monday. This operational shift follows a failure by US and Iranian negotiators to reach a lasting peace deal in Islamabad, with President Trump citing Iran’s refusal to abandon its nuclear ambitions as the primary catalyst for the new "all or none" maritime policy.

Legal Definition and Practical Execution of the Blockade

According to the US Navy Commander’s Handbook, a blockade is a belligerent operation intended to prevent vessels of all states—including neutral parties—from entering or exiting specified enemy controlled ports. In practice, Centcom stated the blockade will be enforced "impartially" across all Iranian ports in both the Arabian Gulf and the Gulf of Oman. Notably, US forces have clarified that they will not impede vessels transiting to or from non-Iranian ports, such as those in the United Arab Emirates or Oman, provided they are not paying tolls to Tehran.

Countering Iranian Tolls and Maritime Mining Operations

A central component of the new US strategy involves the interdiction of any vessel in international waters that has paid transit tolls to Iran. President Trump characterized these fees as "illegal" and warned that safe passage would be denied to those who comply with Iranian demands. Furthermore, the US Navy has been instructed to begin destroying naval mines allegedly laid by Iran. The President issued a stark warning, stating that any Iranian forces firing upon peaceful vessels or US assets would be "blown to hell."