The United States has now intercepted multiple Venezuelan oil tankers as part of its escalating aggression against Venezuela, while also destroying dozens of small boats in the Caribbean and Pacific under the banner of "drug enforcement," killing over 100 people whose identities the U.S. has obscured. At the same time, the Trump administration has threatened a naval blockade of Venezuela—a sovereign country with which the United States is not at war.

How can Washington claim the right to seize or blow up vessels, disrupt maritime trade, and kill civilian boaters—while bombing Yemen and condemning its de facto Houthi government for intercepting ships in the Red Sea to counter Israel's genocide in Gaza?

This contrast exposes a stark double standard in U.S. policy. The U.S. government labelled the Houthis' actions as "terrorism", piracy, and a threat to U.S. national security, even as the Houthi government presented plausible legal justifications for its actions based on the laws of war. But Washington has tried to normalize—or even glorify—its own attacks on tankers, pineros (ferries or water-taxis) and fishing boats, which violate the most basic principles of international law.

Beginning in November 2023, Yemen's Houthi movement launched a naval campaign in the Red Sea, Gulf of Aden, and Arabian Sea in response to Israel's assault on Gaza. The Houthis publicly announced their criteria, stating they would target only vessels linked to Israel, bound for Israeli ports, owned by Israeli companies, or connected to states materially supporting Israel's war.

The United States and its allies immediately denounced these actions as criminal. And there were legitimate grounds for scrutiny. Human rights groups raised concerns about attacks that struck vessels without obvious Israeli connections and about the safety and treatment of civilian crews. Over the course of the campaign, the Houthis targeted more than 100 commercial vessels, damaged dozens, sank several, and seized at least one ship outright—the Galaxy Leader—detaining its multinational crew for more than a year before releasing them in connection with Gaza ceasefire negotiations.

But as a matter of law, the Houthis consistently framed their actions as blockade and interdiction during an armed conflict, justified by Israel's grave breaches of international humanitarian law. That legal framework exists. Under the Geneva Conventions and customary international law, parties to an armed conflict have the right—and in cases of grave breaches, the obligation—to interdict shipping that materially supports a belligerent committing mass civilian harm. In the case of Israel's genocide, the International Court of Justice (ICJ) has found, and the UN General Assembly (UNGA) has affirmed, that all states are obliged to cut off all military and economic support for Israel's assault on Gaza. 

The United States' response was not to pressure Israel to halt its genocidal assault—an outcome that would have also immediately ended the Houthi campaign—but to unleash overwhelming force against Yemen.

Beginning in December 2023, Washington organized Operation Prosperity Guardian, a multinational naval deployment backed by extensive U.S. airpower. Over the following year, the United States and Britain carried out hundreds of airstrikes on Yemen, bombing radar sites, missile launchers, ports, the capital, Sanaa, and other infrastructure. Several hundred Houthi fighters were killed, along with scores of civilians. One U.S. strike on the Ras Isa oil terminal killed dozens of African migrants when U.S. bombs hit a detention facility.

But how do the Houthi interdictions compare with the Trump administration's actions toward Venezuela?

On December 10, Donald Trump boasted to reporters, "We have just seized a tanker on the coast of Venezuela — a large tanker, very large, the largest one ever seized actually," as his administration released video of U.S. Marines rappelling from helicopters onto a civilian oil tanker. This was not a conflict zone. Venezuela is not at war with the United States. There was no UN Security Council authorization, no armed conflict, and no claim of self-defense.

Since then, additional Venezuelan-linked tankers have been intercepted or turned back, and the administration has openly threatened a naval blockade.

Meanwhile, U.S. forces have destroyed dozens of small boats in the region under the pretext of counter-narcotics operations, killing over 100 people at sea without arrests, trials, or even public identification of the victims. These were not lawful acts of war or legitimate law enforcement. They were extralegal, summary uses of lethal force.

Under international law, seizing civilian commercial vessels in international waters or imposing a naval blockade outside of a declared armed conflict are "acts of aggression" and can constitute acts of war. The Trump administration claims its actions are justified by U.S. sanctions on Venezuela. But those sanctions are themselves illegal under international law. Only the UN Security Council has the authority to impose and enforce sanctions. Unilateral coercive measures—especially when enforced through military force—violate the UN Charter.

Legal experts have been unequivocal: the United States has no jurisdiction to seize foreign-flagged vessels to enforce its domestic laws or unilateral sanctions outside its territory, particularly in another country's territorial waters.

The distinction could not be clearer. 

The Houthis declared a blockade and attacked ships that violated it, based on a legal rationale rooted in the laws of armed conflict, to try to end mass civilian slaughter in Gaza, and their interceptions stopped when a ceasefire was declared in Gaza. 

On the other hand, the United States, a permanent member of the UN Security Council, has seized tankers, destroyed boats, killed people at sea, and threatened a blockade against a country it is not at war with—not to try to end a war or save a civilian population from genocide, but simply in pursuit of extralegal regime change and U.S. control of that country's most valuable resources.

If the United States wants safety at sea, whether in the Caribbean or the Red Sea, it should stop enforcing illegal sanctions by the illegal use of military force, and stop enabling genocide in Palestine. U.S. murder and violence against other people and countries does not become lawful simply because officials in the White House wish that it was.

Medea Benjamin and Nicolas J. S. Davies are the authors of War In Ukraine: Making Sense of a Senseless Conflict, now in a revised, updated 2nd edition.

Medea Benjamin is the cofounder of CODEPINK for Peace, and the author of several books, including Inside Iran: The Real History and Politics of the Islamic Republic of Iran. 

Nicolas J. S. Davies is an independent journalist, a researcher for CODEPINK and the author of Blood on Our Hands: The American Invasion and Destruction of Iraq.