President Trump has taken the contest over the Strait of Hormuz beyond blockades, shipping lanes, and naval power. Speaking in Garden City, New York, he declared that once the United States finished defeating Iran, he would “pretty soon” designate the strait as American territory. He reinforced the point by noting that the United States controls which ships pass through its blockade. Iran quickly responded that the waterway “has been Iranian, is Iranian, and will remain Iranian.”

Those competing declarations make for dramatic headlines, but they also blur three very different things: military control, territorial sovereignty, and the right of international passage. Sorting those out matters because the Strait of Hormuz isn’t an obscure patch of water. Before the current conflict, approximately 21.6 million barrels of petroleum liquids moved through it each day. That figure fell to 4.9 million barrels per day during the second quarter of 2026, according to the U.S. Energy Information Administration.

This is where naval strategy, constitutional authority, international law, and the price at the neighborhood gas station all meet in one very narrow waterway.

Why Trump Thinks the Strait Is Up for Grabs

The strongest argument supporting Trump’s proposed declaration doesn’t necessarily depend on the idea that a presidential speech could instantly transfer legal title. Instead, supporters could interpret his statement as notice that the United States intends to convert its military control into a permanent security arrangement.

The United States May Possess Effective Control

Sovereignty and control aren’t identical, but control matters in international affairs. A government may have a legal claim to a territory while another power determines what actually happens there.

The Trump administration contends that the United States has achieved substantial operational control around the strait. In a May Pentagon briefing, military leaders reported that more than 15,000 American service members, supported by naval and air assets, had established localized sea and air control to protect commercial shipping. The operation was launched after Iran attacked vessels, obstructed traffic, and attempted to turn the waterway into leverage over the international economy.

From this perspective, Trump’s describing the practical reality on the water. Iran may claim authority, but if American forces decide which ships may pass and possess the military power to enforce that decision, Washington holds the stronger hand.

Supporters might argue that formal declarations often follow realities already created through diplomacy, war, or occupation. The United States wouldn’t be claiming an entirely random body of water from several thousand miles away. It would be claiming authority over a strategic corridor its military had fought to reopen and was continuing to defend.

Iran Has Abused Its Geographic Position

Iran’s claim that the strait belongs exclusively to Tehran is itself highly questionable. The waterway is bordered by Iran to the north and Oman to the south. Although the surrounding territorial waters belong to the bordering states, the strait is used for international navigation, and ships ordinarily possess a right of transit passage.

Under Part III of the United Nations Convention on the Law of the Sea, states bordering an international strait must not hamper transit passage. They may regulate safety and navigation, but they’re not supposed to treat an international shipping route as a private toll road or geopolitical hostage.

Iran’s attacks, blockade, and attempts to dictate which vessels may travel through the strait provide the strongest substantive argument for outside intervention. Supporters of Trump’s position say Tehran has forfeited any reasonable expectation that the world will simply trust it to behave responsibly. When a regime repeatedly weaponizes a vital shipping lane, promises of future restraint begin to sound about as reliable as a screen door on a submarine.

The United States could therefore present permanent American administration as a means of protecting freedom of navigation rather than acquiring territory merely for expansion. The stated purpose would be to prevent Iran from again threatening the energy supplies and economies of dozens of countries.

American Control Could Provide Long-Term Stability

Temporary naval escorts may reopen a shipping lane today without resolving what happens next month or next year. If American forces eventually withdraw while leaving the underlying dispute unresolved, Iran may simply rebuild its capabilities and resume coercion.

Supporters therefore argue that some permanent arrangement is necessary. American jurisdiction, a long-term lease, a security zone, or a U.S.-administered maritime authority could offer merchants and insurers greater certainty than another vaguely worded agreement with Tehran.

A permanent American presence might also deter piracy, mining, missile attacks, ship seizures, and discriminatory transit fees. Because the strait affects Gulf exporters, Asian importers, European economies, and worldwide energy prices, stability there produces benefits far beyond the United States.

From that angle, Trump’s use of the word “territory” may be less important than the strategic principle behind it: Iran must never again possess unilateral power to close the world’s most important energy chokepoint.

A Lawful Path Could Theoretically Be Negotiated

The United States has historically acquired territory through treaties and legislation. The Constitution doesn’t contain a single clause labeled “territorial acquisition,” but the federal government has exercised that authority through the treaty-making and legislative powers.

A future peace agreement could theoretically grant the United States basing rights, long-term administrative authority, a lease, or even some form of territorial cession. Oman and Iran would have to consent to any transfer involving their waters, and the agreement would require the appropriate American constitutional process.

Trump, as president, could initiate those negotiations and make an American claim part of a proposed settlement. Supporters could therefore defend his statement as announcing a bargaining objective rather than pretending that the legal process has already been completed.

Presidents frequently begin negotiations with maximalist demands. Trump’s claim may be designed to warn Tehran that using the strait as an instrument of war could cost Iran more authority over it, not less. Whether that approach produces compromise or merely louder shouting remains an open question, but coercive bargaining is hardly foreign to international diplomacy.

Those Carrying the Burden May Demand a Larger Role

The United States has spent enormous resources protecting shipping that primarily benefits other nations. Much of the oil passing through Hormuz is headed toward Asian and European markets rather than American ports.

Supporters reasonably ask why the United States should supply the ships, aircraft, personnel, and money while Iran and other governments expect Washington to walk away once the immediate danger passes. If America is going to remain the principal guarantor of navigation, it may demand a formal role sufficient to carry out that responsibility.

Trump’s territorial language could therefore be understood as an intentionally blunt challenge to allies: either help create and enforce a durable security structure or accept that the country doing most of the work will expect considerable authority over the result.

Why Control Doesn’t Come with a Deed

The arguments against Trump’s declaration begin with a basic distinction. A country can control a location militarily without owning it. Naval power may decide who travels through a waterway during a conflict, but it doesn’t automatically produce a deed.

The President Can’t Unilaterally Acquire Territory

The most immediate constitutional problem is that a president can’t permanently add foreign territory to the United States simply by declaring it.

The Supreme Court addressed this distinction in Fleming v. Page following the Mexican-American War. As summarized by the Constitution Annotated, the Court concluded that foreign territory could be acquired only through the treaty-making power or legislative authority, not through the president’s wartime authority as commander in chief.

The president could negotiate a treaty, subject to the Senate’s advice and consent, or ask Congress to approve an arrangement through legislation. He can also exercise temporary military authority over an occupied area during hostilities. What he can’t do is permanently transform a foreign waterway into American territory through an executive order, social-media post, or campaign-style speech.

A presidential microphone is powerful, but it’s not a maritime marker capable of redrawing the map.

Military Victory Doesn’t Create Lawful Sovereignty

Even if the United States completely defeated Iran and occupied the surrounding waters, modern international law rejects territorial acquisition through force.

Article 2(4) of the United Nations Charter prohibits the threat or use of force against another state’s territorial integrity. The right of individual or collective self-defense may justify military action against attacks, but it doesn’t ordinarily authorize the defending state to annex the attacker’s territory.

This distinction is especially important for the United States. Washington has repeatedly condemned Russia’s attempted annexation of Ukrainian territory and China’s efforts to transform military power into expanded maritime claims. Declaring Hormuz American territory after a war would give both governments a remarkably convenient talking point.

The principle can’t sensibly be that conquest is illegal when hostile regimes attempt it but acceptable whenever Washington believes its motives are better. A rules-based order becomes difficult to defend when the rules arrive with partisan exemptions attached.

The Strait Isn’t Exclusively Iranian or American

Iran’s response shouldn’t be accepted uncritically either. Tehran may control its own territorial waters, but it doesn’t possess exclusive sovereignty over the entire Strait of Hormuz. Oman borders the southern side, and important navigation routes pass through Omani waters.

The law of the sea preserves the sovereignty of bordering states while also guaranteeing transit passage. Article 34 states that the international navigation regime doesn’t otherwise alter the legal status of the waters or the sovereignty of the bordering countries. Articles 38 and 44 protect the passage of ships and prohibit bordering states from hampering that passage.

The correct legal principle is therefore more complicated than either government’s slogan. Hormuz isn’t wholly Iranian, but it’s not an ownerless waterway waiting for the United States to claim it. Iran and Oman retain sovereignty over their respective territorial waters, while foreign ships retain navigation rights through the strait.

Iran can’t lawfully close the entire waterway whenever it wants political concessions. The United States can’t lawfully annex it because the Navy currently possesses greater firepower. Both claims confuse the ability to impose control with the right to possess sovereignty.

The Declaration Would Undermine America’s Own Argument

The Trump administration originally justified its maritime operation by presenting the strait as a route belonging to international commerce rather than any single country.

During a May Pentagon briefing, Defense Secretary Pete Hegseth said the waters belonged to all nations rather than Iran and described the mission as temporary. Military leaders emphasized that the objective was to restore freedom of navigation, not establish American ownership.

Declaring the strait U.S. territory would reverse that message. Washington would move from arguing that no country may monopolize the waterway to announcing that the United States intends to monopolize it. Iran would undoubtedly exploit that contradiction to portray its blockade as resistance to American imperial expansion rather than an unlawful assault on commercial navigation.

That would make it harder to build the broad international coalition needed to secure the strait. Gulf governments may oppose Iranian aggression while still rejecting an American territorial claim over waters bordering their own countries.

The Claim Could Alienate Oman and Other Partners

Oman isn’t merely a geographical detail. It’s a sovereign nation, an American security partner, and a frequent diplomatic intermediary between Washington and Tehran. Any territorial declaration affecting the southern half of the strait would implicate Omani sovereignty.

Even friendly governments tend to become considerably less friendly when another country announces ownership of the waters along their coastline.

Saudi Arabia, the United Arab Emirates, Qatar, Bahrain, Kuwait, and Iraq all have strong interests in keeping Hormuz open. They may support American naval protection without supporting permanent American sovereignty. An unnecessary territorial dispute could fracture the coalition precisely when cooperation is most important.

Ownership Would Bring Open-Ended Obligations

If the United States declared Hormuz its territory, it would also assume responsibility for defending, administering, regulating, and maintaining that territory indefinitely.

That would require a permanent military commitment within missile range of Iran. American forces could become responsible for every shipping dispute, terrorist attack, collision, smuggling operation, and regional confrontation around the strait. What begins as a dramatic declaration could become a very expensive promise with no obvious exit.

The United States already has the military ability to defend navigation without acquiring sovereignty. Opponents therefore argue that territorial annexation would add legal complications and strategic liabilities without supplying any essential capability America doesn’t already possess.

The Strait Answer

From my perspective, Trump’s right about the central danger and wrong about the proposed remedy.

Iran has no legitimate right to hold international commerce hostage, attack civilian vessels, demand political concessions for passage, or pretend that the entire Strait of Hormuz is its private aquatic driveway. Tehran’s regime understands pressure far better than polite diplomatic concern, and the United States should be willing to use military force when necessary to defend its troops, protect innocent shipping, and keep this vital route open.

We shouldn’t reward Iranian aggression with sanctions relief, toll revenue, or international recognition of exclusive Iranian control. If American naval power is what prevents Tehran from strangling the global economy, then maintaining that power is justified. Our allies should also contribute far more to the cost and risk of the mission because they depend heavily upon the waterway.

But declaring Hormuz American territory would cross a line that doesn’t need to be crossed.

Constitutional limits don’t become optional because the president invoking them happens to be tougher on Iran than his opponents. A president can’t permanently acquire territory by declaration, and conservatives should be especially suspicious of any theory that allows one person to enlarge the United States through military power alone.

The moral issue matters as well. Government possesses a God-given responsibility to restrain evil and defend the innocent, but power doesn’t create righteousness. “Righteousness exalteth a nation,” not merely strength, ambition, or the ability to park an aircraft carrier wherever we please. A just cause can be weakened by an unjust claim.

The better approach is firm without becoming imperial. The United States should continue protecting commercial vessels, destroy forces that attack American troops or innocent shipping, and maintain severe economic pressure on Iran. At the same time, Washington should assemble a durable multinational security arrangement, require allies to share the burden, and negotiate a binding agreement recognizing the sovereignty of the bordering states while guaranteeing uninterrupted transit passage for all lawful shipping.

Any long-term military or administrative arrangement should be approved by Congress and established through treaties or legislation. If Oman voluntarily grants basing rights or agrees to an internationally supervised security corridor, that would be lawful and strategically useful. What Washington should reject is both Iran’s claim of exclusive control and the idea that America must own the waterway to keep it open.

Trump’s rhetoric may be useful as negotiating pressure, but it shouldn’t become actual policy. The Navy can secure a sea lane; it can’t notarize an annexation.

Defend the strait. Keep Iran from closing it. Make our allies help pay for protecting it. But leave the American flag on our ships rather than planting it in someone else’s territorial waters.