ACADEMIC POLICY ESSAY
US
Military Action Against Iran, the Blockade of the Strait of Hormuz, and the
Legal and Moral Case for Reparations of Global Economic Harm
March 20, 2026
ABSTRACT
On
February 28, 2026, the United States and Israel launched a large-scale
coordinated military operation — Operation Epic Fury — against Iran, resulting
in over 1,300 Iranian casualties including Supreme Leader Ali Khamenei. Iran's
immediate retaliatory closure of the Strait of Hormuz precipitated the largest
disruption to global energy markets since the 1970s oil shocks. This essay
argues that, to the extent the military operation constitutes a violation of
Article 2(4) of the UN Charter and customary international law's prohibition on
the use of force, the United States bears state responsibility for reparation
of the resulting global economic harm. Drawing on the ILC Articles on State
Responsibility (2001), the ICJ Nicaragua judgment, just war theory, and the
foreseeability principle, this essay constructs a systematic legal and moral
case for compensation owed to third-party states and the international
community.
The
Strait of Hormuz is the world's single most critical maritime chokepoint.
According to the U.S. Energy Information Administration, approximately 20
percent of global petroleum liquids passed through this 21-mile-wide passage in
2024 — roughly 20 million barrels per day. Its strategic significance cannot be
overstated: there is no fully adequate alternative route for the volume of
energy it carries.
Within
days of the February 28 strikes, Brent crude prices surged from approximately
$70 per barrel to over $110 — one of the largest supply disruptions in the
history of global oil markets. Oxford Economics identified $140 per barrel as
the threshold at which the eurozone, the United Kingdom, and Japan would enter
recession, with global GDP declining by 0.7 percent and world inflation
climbing to 5.1 percent.
The
consequences extend far beyond energy. Approximately one-third of global
fertilizer trade transits the Strait of Hormuz. Aluminum smelters,
petrochemical plants, semiconductor-grade helium suppliers, and pharmaceutical
logistics chains all depend on uninterrupted passage. The current crisis is not
merely an energy price shock; it is a compound, cascading disruption to the
architecture of global supply chains.
Before
this scale of harm, international legal scholarship and the policy community
face an unavoidable question: when a state's military action foreseeably
triggers economic devastation affecting billions of people across dozens of
uninvolved nations, does it bear legal and moral responsibility for those
losses?
This
essay answers in the affirmative.
II. Factual Framework:
Establishing the Causal Chain
Any
discussion of reparations must begin with a rigorous establishment of
causation. International law does not impose liability for remote or
speculative harm; it requires that damage be sufficiently direct and
foreseeable. The causal chain in the present case is as follows.
On
February 28, 2026, coordinated U.S.-Israeli airstrikes targeted Iranian
military installations, nuclear facilities, and senior leadership. Within hours
of the initial strikes, the Islamic Revolutionary Guard Corps (IRGC)
transmitted warnings via VHF radio prohibiting all vessel transit through the
Strait. Tanker traffic fell by 70 percent in the first week. Over 150 vessels
sheltered outside the Strait rather than risk passage.
The
United States government itself implicitly acknowledged this causal nexus.
President Trump warned that any interference with free navigation through the
Strait of Hormuz would be reconsidered — a statement that publicly tied the
military action to the strait's status and thereby confirmed the directness of
the connection.
The
chain is thus: U.S. military action → Iranian retaliatory closure → global
energy supply disruption → oil price spike and macroeconomic harm. This
sequence satisfies the international law standard of harm that is sufficiently
direct and foreseeable to ground a claim of state responsibility.
III. International Legal
Foundations
3.1 The UN Charter Article 2(4):
The Prohibition on the Use of Force
Article
2(4) of the United Nations Charter provides that all member states shall
refrain in their international relations from the threat or use of force
against the territorial integrity or political independence of any state. This
norm forms part of customary international law and binds all states regardless
of treaty membership. The Charter permits only two exceptions to this
prohibition: authorization by the Security Council under Chapter VII, or the
exercise of individual or collective self-defense under Article 51.
The
legal basis for the February 2026 operation remains, at minimum, deeply
contested. The Trump administration framed Iran as a principal source of
regional instability and cited prior operations as having substantially
degraded Iran's nuclear program. However, whether a unilateral preventive
strike against a nuclear program — without Security Council authorization —
satisfies the strict requirements of Article 51 self-defense is among the most
disputed questions in contemporary international law.
Customary
international law requires that self-defense be directed against an armed
attack that is imminent and unavoidable. A threat that is possible but not yet
imminent does not meet this threshold. That determination requires independent
judicial scrutiny that has not yet been conducted by any international
tribunal.
3.2 ILC Articles on State
Responsibility (2001)
Even
where the legality of the use of force itself remains contested, the question
of responsibility for foreseeable consequences is analytically distinct. The
International Law Commission's Draft Articles on Responsibility of States for
Internationally Wrongful Acts (2001) provide the governing framework.
Article
31 of the ILC Draft Articles provides that a responsible state is under an
obligation to make full reparation for the injury caused by its internationally
wrongful act, including financially assessable damage such as loss of profits.
Article 36 specifies monetary compensation as the modality for quantifiable
harm.
"A violation of the
prohibition of the use of force exposes the violating state to countermeasures
and reparations under customary international law, and insofar as the
prohibition constitutes jus cogens, it cannot be excused by circumstances
precluding wrongfulness such as necessity, distress or force majeure. This
obligation is also erga omnes — it may be invoked not only by directly affected
states but by all states."
The
erga omnes character of the prohibition is particularly significant in the
present case. Because the Hormuz closure has caused diffuse, systemic harm to
dozens of states with no direct connection to the underlying dispute, those
states are not relegated to the status of mere bystanders under international
law. They possess standing to raise claims predicated on obligations owed to
the international community as a whole.
3.3 Freedom of Navigation and
UNCLOS
The
United Nations Convention on the Law of the Sea (UNCLOS) guarantees the right
of transit passage through straits used for international navigation. Iran's
closure of the Strait may itself constitute a violation of UNCLOS. However, the
fact that Iran is the proximate actor in the blockade does not eliminate the
causal role of U.S. military action as the precipitating event.
International
law does not assign responsibility solely to the final actor in a causal
sequence. The law of proximate cause — applied consistently in international
arbitration and adjudication — requires attribution to the state whose conduct
set the sequence in motion. Where a state's military action foreseeably
provokes a retaliatory response that damages the global commons, the initiating
state cannot escape responsibility by pointing to the intervening act of its
adversary.
IV. The Scale of Harm:
Quantifying the Reparation Claim
Any
serious reparations framework must grapple with the magnitude of the harm.
Several categories of loss are readily identifiable.
Energy
Markets: Brent crude rose more than 40 percent in the weeks following the
strikes, from approximately $65 to over $105 per barrel. Oxford Economics
projected that at $140 per barrel — an entirely plausible scenario given the
trajectory — the eurozone, UK, and Japan would enter contraction, global GDP
would fall 0.7 percent, and global inflation would reach 5.1 percent. Each
percentage point of foregone global GDP represents trillions of dollars in lost
output.
Asian
Economies: South Korea sources approximately 60 percent of its crude oil
imports through the Strait of Hormuz; Japan, approximately 70 to 75 percent;
India, more than half of its LNG imports from Gulf-connected sources. These
nations bear a disproportionate share of the physical supply shock despite
having no role in, and no ability to influence, the underlying dispute.
Agricultural
and Food Security: Global fertilizer trade — roughly one-third of which
transits the Strait — has been severely disrupted. Urea prices spiked from
approximately $475 to $680 per metric ton at the New Orleans hub. In developing
economies already facing food insecurity, price increases of this magnitude
carry life-threatening consequences.
Shipping
and Insurance: War-risk insurance premiums on Persian Gulf routes surged 50
percent. Major carriers including Maersk and Hapag-Lloyd suspended Middle East
routes. The compounding effect of disrupted logistics cascades through
manufacturing, pharmaceuticals, and consumer goods globally.
The
aggregate economic harm attributable to the Hormuz disruption is not merely
substantial — it is, in all likelihood, among the largest single acts of
economic harm ever visited upon the international community by the action of
one state.
V. Moral Foundations:
Foreseeability and Proportionality
The
international legal argument is buttressed — and in some respects independently
grounded — by two pillars of moral philosophy: the principle of foreseeability
and the requirements of proportionality and last resort under just war theory.
5.1 The Foreseeability Principle
Moral
responsibility attaches most clearly when an actor could reasonably have
predicted the consequences of its conduct. In this case, the foreseeability of
Hormuz-related economic fallout was not speculative — it was documented,
specific, and publicly stated.
Iran
had issued explicit warnings prior to the strikes that any military adventure
would have irreversible consequences for the world economy and that
responsibility would rest with the United States. Energy analysts at
organizations including Oxford Economics and the Energy Intelligence Group had
publicly modeled the price and supply implications of a Strait closure months
before the operation. Decision-makers who proceeded in the face of this
documented foresight bear heightened moral responsibility for the consequences.
5.2 Proportionality and Last
Resort
The
just war tradition, codified in modern international humanitarian law, requires
that military action be a last resort — taken only when all other reasonable
alternatives have been exhausted — and that the anticipated military advantage
not be disproportionate to foreseeable civilian harm. The February 2026 strikes
followed the failure of Geneva-based nuclear negotiations. Whether all
diplomatic channels were truly exhausted before force was employed is a factual
question that warrants independent inquiry.
On
the proportionality dimension, the calculus is stark. The imposition of
effective economic disruption on billions of people across dozens of countries
— including populations entirely uninvolved in any aspect of the underlying
security dispute — cannot easily be characterized as a proportionate means to
any discrete security objective. A doctrine that permits one state's security
preferences to generate this scale of global harm without any accountability
mechanism cannot be defended as a principle of just international order.
VI. Counter-Arguments
and Rebuttals
6.1 The United States Had a Right
of Self-Defense
The
most serious counter-argument is that the United States acted in legitimate self-defense
against an existential nuclear threat. The security concerns driving the
operation are genuine and recognized across the international community.
However, this argument fails for at least two reasons.
First,
as noted above, the customary law requirements for anticipatory self-defense —
imminence, necessity, and proportionality — are stringent. A nuclear capability
that is being developed but has not yet produced a deliverable weapon poses a
threat that, however serious, does not obviously satisfy the imminence
requirement. The legality of the action under Article 51 remains genuinely
contested and has not been adjudicated.
Second,
and more fundamentally for the reparations question, even a lawful act of
self-defense can give rise to obligations of compensation toward third parties
who suffer foreseeable collateral harm. The claim of reparations by South
Korea, Japan, India, or European states for economic losses from the Hormuz
disruption is not a claim against the United States for waging war — it is a
claim that those nations' losses, caused by a chain of events the United States
set in motion, deserve redress. These are analytically independent questions.
6.2 Iran Is the Direct Actor in
the Blockade
A
second objection holds that Iran — not the United States — closed the Strait,
and that Iran is therefore the party responsible for any resulting harm. This
argument misapprehends how international law and moral philosophy allocate
responsibility in causal chains.
The
International Court of Justice's 1986 judgment in Nicaragua v. United States
established that support, training, and direction of armed forces — even
without direct participation in specific operations — can constitute a use of
force under the Charter. By extension, a military action that foreseeably
produces a retaliatory response cannot simply externalize the consequences of
that response onto the party that was attacked. Where the intervening act of a
third party is a foreseeable and natural response to the original conduct, that
response does not break the causal chain for purposes of legal and moral
responsibility.
6.3 Sovereign Immunity
The
United States will invoke its sovereign immunity from the jurisdiction of
foreign courts and international tribunals to which it has not consented. This
is a genuine procedural obstacle. However, the substantive principle of
reparations for violations of jus cogens norms — including the prohibition on
the use of force — is not thereby extinguished. The development of
international law over the past three decades has progressively restricted the
scope of sovereign immunity in cases involving violations of peremptory norms.
The obligation to make reparation subsists even where enforcement mechanisms
are imperfect.
VII. Practical Pathways
to Reparations
Theoretical
arguments must be accompanied by realistic mechanisms for implementation.
Several pathways exist within the existing architecture of international law.
UN
General Assembly Resolution: With a U.S. veto predictable in the Security
Council, the General Assembly provides the most accessible multilateral forum.
Under the Uniting for Peace procedure, the Assembly has jurisdiction where the
Council fails to act due to a veto. A resolution formally characterizing the
military action as a violation of the Charter, and establishing a framework for
compensation of third-party losses, would carry strong normative authority even
without legal binding force. The precedent of UN General Assembly Resolution
ES-11/1 — adopted by 141 states in response to Russia's invasion of Ukraine —
demonstrates the viability and political weight of this approach.
ICJ
Advisory Opinion: The General Assembly may request an advisory opinion from the
International Court of Justice on the lawfulness of the military action and its
legal consequences for third-party states. Advisory opinions are not binding,
but they carry the highest judicial authority in the international system and
provide an authoritative legal framework upon which aggrieved states may base
diplomatic and legal claims.
Multilateral
Compensation Mechanism: Following precedents established by the UN Compensation
Commission (UNCC) — which administered claims arising from Iraq's invasion of
Kuwait and ultimately distributed over $52 billion in compensation — a dedicated
multilateral claims body could be constituted to quantify and distribute
compensation to states and entities that suffered verifiable economic losses
attributable to the Hormuz disruption. Such a body would require either a
Security Council resolution or a sufficiently broad coalition of states acting
under customary international law.
Bilateral
and Regional Diplomacy: Pending resolution of the multilateral track, the most
economically exposed states — South Korea, Japan, India, Germany, France — may
pursue bilateral claims through diplomatic channels, trade negotiations, or
agreed arbitration. The cumulative effect of simultaneous claims by major
economies could generate significant practical pressure even in the absence of
a formal adjudication.
VIII. Conclusion
The
Hormuz crisis is not a regional disturbance with local consequences. It is — as
energy analysts have described — the largest disruption to global energy supply
since the 1970s oil shocks, and its direct precipitating cause was a decision
made in Washington.
International
law is imperfect. The veto power of permanent members of the Security Council,
the absence of centralized enforcement, and the difficulties of imposing
effective accountability on powerful states are well-documented structural
limitations. But these limitations do not void the underlying norms. The
principle that states bear responsibility for the foreseeable consequences of
their use of force — and that responsibility carries with it an obligation to
make reparation — is not a novel proposition. It is a cornerstone of the
post-1945 international legal order.
The
moral argument is equally clear. A doctrine that permits one state to take
military action whose predictable, documented consequences include devastating
economic harm to billions of uninvolved people — and to do so with complete
impunity — cannot be reconciled with any coherent principle of international
justice. The foreseeability was documented. The harm is measurable. The causal
connection is direct.
The
greatest achievement of twentieth-century international law was the removal of
war from the domain of unilateral sovereign prerogative and its relocation
within a framework of community norms and accountability. Preserving that
achievement requires that the principle of accountability be applied
consistently — to powerful states as well as to weak ones. The United States,
like every member of the international community, must answer for the
foreseeable consequences of its use of force.
When
it does, reparations are not a punitive imposition. They are the minimum
requirement of a rule-based international order.
Disclaimer: This essay constitutes a legal argument constructed for academic and policy purposes. It does not represent the political position of its author. The complex factual and legal questions arising from the present conflict remain subject to dispute, and final legal determinations can only be made by competent international judicial bodies. Multiple perspectives on the legality and justification of the underlying military action exist within the international legal community.
Social Plugin