Iran Accuses US of ‘Piracy’ for Blockading Strait of Hormuz
Published on Reflecto News | World News | Defense & Geopolitics
Iran has formally accused the United States of committing “piracy” by imposing a naval blockade on the Strait of Hormuz, escalating the war of words between the two nations as US warships begin enforcing the sweeping maritime embargo. The accusation, made by Iran’s mission to the United Nations in New York, comes just hours after President Donald Trump warned that any Iranian “fast attack ships” approaching the blockade would be “immediately eliminated” .
“The United States is engaged in piracy on the high seas. Blockading the Strait of Hormuz is an illegal act of aggression that violates international law and endangers global energy security.” — Iranian Mission to the United Nations
‘Piracy’ on the High Seas
Iran’s legal framing is deliberate. Under international law, piracy is defined as illegal acts of violence, detention, or depredation committed for private ends on the high seas. By accusing the US of “piracy,” Tehran is seeking to delegitimize the blockade and frame American actions as criminal rather than a lawful act of war.
Iranian officials have also called the US restrictions on international waters “tantamount to piracy” . An Iranian armed forces spokesman said the blockade was “illegal” and warned that if Iranian ports are compromised, then no port in the Gulf or the Gulf of Oman will be considered safe .
The accusation echoes similar Iranian rhetoric during the 2019 Gulf tanker crisis, when Tehran accused the US and UK of “piracy” for seizing an Iranian supertanker off Gibraltar .
The US Legal Justification: Self-Defense and Armed Conflict
The United States has a different legal framework. Under international maritime law, parties to an armed conflict can exercise the right of “visit and search” — stopping and inspecting vessels in waters that are not neutral . The US argues that it is in a state of armed conflict with Iran, which began when US and Israeli forces launched strikes against the Islamic Republic on February 28 .
US legal arguments for the blockade:
- State of armed conflict: The US and Iran are at war, giving belligerents certain rights under international law
- Self-defense: The blockade is necessary to prevent Iran from exporting oil and funding its military operations
- UN Charter Article 51: The US retains the inherent right of individual and collective self-defense
- Humanitarian exceptions: Food, medicine, and other essential goods are permitted
James Kraska, a professor of international maritime law at the US Naval War College, told the New York Times that such a blockade could “inflict economic damage on Iran that would undermine its ability to keep fighting over the long term by denying it the ability to export oil and earn revenue” .
The Blockade: What It Means
The US naval blockade officially began at 10:00 AM Eastern Time on Monday, April 13, 2026 .
| Blockade Element | Details |
|---|---|
| Effective date | April 13, 2026, 10 a.m. ET |
| Area | All Iranian ports on Arabian Gulf and Gulf of Oman |
| Enforcement | Impartial against vessels of all nations |
| Humanitarian exception | Food, medical supplies permitted (subject to inspection) |
| Neutral transit | Vessels to non-Iranian ports not impeded |
| Consequences | Interception, diversion, capture |
President Trump has also ordered the Navy to “seek and interdict every vessel in International Waters that has paid a toll to Iran,” declaring that “no one who pays an illegal toll will have safe passage on the high seas” . He further warned that “any Iranian who fires at us, or at peaceful vessels, will be BLOWN TO HELL” .
Iran’s Response: Defiance and Threats
Iranian officials have dismissed the blockade as “ridiculous” while warning of severe consequences for any attempted enforcement .
“The threats of the US president to blockade Iran at sea … are very ridiculous and funny.” — Shahram Irani, Iranian Naval Commander
The Islamic Revolutionary Guard Corps (IRGC) Navy declared that the Strait of Hormuz remains under Iran’s “full control” and warned that any “erroneous maneuver will trap the enemy in deadly whirlpools in the strait” . The IRGC also warned that any military vessels attempting to approach the strait will be considered a violation of the fragile two-week ceasefire and will face a “harsh and decisive” response .
Iran has also signaled it will continue oil exports using its “ghost fleet” of tankers that use flag-of-convenience registrations, AIS spoofing, and ship-to-ship transfers to evade detection .
The Ceasefire: Fragile and Threatened
The blockade comes as the two-week ceasefire between the US and Iran, brokered by Pakistan and announced on April 7, remains in effect—but is increasingly fragile .
| Ceasefire Element | Status |
|---|---|
| Direct US-Iran hostilities | Paused (fragile) |
| US naval blockade | Began April 13 |
| Iran’s response | Accuses US of “piracy” |
| Israel-Lebanon front | Active; no ceasefire |
| Diplomatic negotiations | Collapsed; no new talks scheduled |
The ceasefire was explicitly conditioned on Iran’s agreement to the “COMPLETE, IMMEDIATE, and SAFE OPENING” of the strategic waterway . Since the ceasefire took effect, maritime tracking data shows that only a handful of vessels — mostly Iranian-linked — have successfully transited the strait, while Iran has maintained that full reopening will only occur after a final peace agreement is reached .
International Reactions: Allies Divided
The blockade has exposed deep divisions between the United States and its traditional allies.
| Country | Position |
|---|---|
| United Kingdom | Refuses to support blockade; pursuing separate maritime coalition with France |
| France | Preparing “peaceful multinational mission” for post-conflict navigation |
| Germany | Will not join military operations |
| Spain | Rejects blockade as “senseless” |
| Japan | Uncertain on minesweeper deployment |
| China | Called for restraint; Iran’s largest oil customer |
The UK has explicitly refused to participate, with Prime Minister Keir Starmer stating that Britain will not be “dragged into the war” . France and the UK are instead preparing a separate “peaceful multinational mission” to restore navigation after the conflict ends .
What Comes Next: Legal and Military Confrontation
As the US blockade takes effect and Iran accuses Washington of “piracy,” the risk of both legal and military confrontation has increased significantly.
| Scenario | Likelihood | Implications |
|---|---|---|
| Iran challenges blockade legally at UN | High | Diplomatic confrontation |
| Iran tests blockade with tanker | Moderate | Risk of military escalation |
| Iran retaliates with mine/drone attack | Moderate | Could trigger wider war |
| Blockade leads to oil price spike | High | Global economic impact |
| Diplomatic breakthrough | Low | Iran has rejected US terms |
The “piracy” accusation is unlikely to change US policy, but it frames the issue for international opinion and could influence how other nations respond to the blockade. For Iran, the accusation is part of a broader strategy to isolate Washington diplomatically while threatening military retaliation if the blockade is enforced .
For now, the US Navy is enforcing the blockade — and Iran has labeled it piracy .
Frequently Asked Questions (FAQs)
1. What did Iran accuse the US of?
Iran accused the United States of committing “piracy” by blockading the Strait of Hormuz, calling the act illegal and a violation of international law .
2. Is the US blockade legal under international law?
The US argues it is in a state of armed conflict with Iran, which gives belligerents certain rights under international law, including the right to impose blockades and conduct visit-and-search operations. Critics argue the blockade may violate international maritime law .
3. What is Iran’s legal argument?
Iran argues that blockading the strait — an international waterway — constitutes “piracy” because it interferes with freedom of navigation for commercial vessels not destined for Iranian ports .
4. What are the rules of the US blockade?
US forces are authorized to stop, inspect, divert, and capture vessels entering or leaving Iranian ports. Humanitarian shipments are exempt, subject to inspection. Vessels transiting to non-Iranian ports will not be impeded .
5. How has Iran responded militarily?
Iran has warned that any military vessels approaching the strait will be considered a violation of the ceasefire and will face a “harsh and decisive” response. Iran has also threatened to make no port in the Gulf safe if its ports are compromised .
6. Is the ceasefire still in effect?
The two-week ceasefire remains in effect but is increasingly fragile. Iran has warned that the blockade itself may be considered a violation .
7. What happens next?
Iran is likely to challenge the blockade legally at the United Nations while also threatening military retaliation. The risk of a direct US-Iran military confrontation in the strait has significantly increased .
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