U.S. Orders Naval Blockade of Iran Ports to Halt All Ships Entering or Leaving

The United States announced the start of a full maritime blockade on all traffic entering and exiting Iranian ports, effective at 10:00 a.m. on April 13. ET, under a presidential proclamation, according to information released by U.S. Central Command on April 12, 2026. The directive gives U.S. forces immediate authority to control access to Iran’s coastline, positioning naval assets to halt shipping and disrupt the movement of goods and military materiel. The move signals a direct escalation in U.S. operations across the Arabian Gulf and Gulf of Oman, targeting Iran’s economic lifelines and maritime mobility. By asserting control over key sea routes, Washington is set to constrain Iran’s trade flows, limit its regional reach, and introduce immediate pressure on broader security and energy dynamics. Read full Naval Defense News at this link …
U.S. Navy warships patrol near the Strait of Hormuz as CENTCOM prepares to enforce a full maritime blockade on Iranian ports starting April 13, 2026, at 10:00 a.m. ET, highlighting rising tensions and the growing role of naval power and anti-ship missile threats in the Gulf region. (Picture source: U.S. CENTCOM)

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