NextFin News - A coalition of international law experts and human rights organizations has formally accused the United States of violating the United Nations Charter and committing war crimes during its ongoing military campaign in Iran. The allegations, detailed in a comprehensive legal brief released on April 2, 2026, center on the February 28 strikes launched by the U.S. and Israel, which the experts claim lacked the legal basis of self-defense or UN Security Council authorization. The report highlights the destruction of critical civilian infrastructure, including the Shajareh Tayyebeh Primary School in Minab, where at least 175 people, mostly children, were killed in a strike the Department of Defense reportedly attributed to "outdated intelligence."
The legal challenge is led by prominent figures including the President of the American Society of International Law and the President of the American Branch of the International Law Association. These experts argue that the U.S. has bypassed the jus ad bellum—the legal justification for entering war—by failing to provide evidence of an "imminent threat" from Tehran. This stance is supported by UN Secretary-General António Guterres, who previously condemned the attacks as a threat to international security. The experts involved have historically advocated for strict adherence to multilateral treaties, often positioning themselves against the "America First" unilateralism that has defined U.S. President Trump’s second term. Their current assessment reflects a long-standing institutional commitment to the UN Charter, though it remains a minority legal view within the current Washington establishment.
Beyond the legality of the war itself, the report focuses on jus in bello, or the conduct of hostilities. It cites the targeting of "dual-use" infrastructure, such as the South Pars gas field and various desalination plants, as a violation of the principle of proportionality. UN High Commissioner for Human Rights Volker Türk described the impact on Iranian civilians as "disastrous," noting that the destruction of energy and water systems constitutes a "war on essential infrastructure." Data from the Iranian Red Crescent suggests that over 67,000 civilian sites have been struck since the conflict began, including nearly 500 schools and over 200 health facilities. These figures, while difficult to verify independently in a combat zone, are being used by legal scholars to build a case for "reckless" warfare.
The rhetoric from the Pentagon has further fueled the controversy. U.S. Secretary of Defense Pete Hegseth recently stated there would be "no quarter, no mercy" for enemies, a phrase that international law experts point out is explicitly forbidden under the Hague Regulations and the U.S. military’s own Law of War Manual. Hegseth has characterized existing rules of engagement as "stupid," while U.S. President Trump has remarked that he does not "need international law." This shift in policy is accompanied by structural changes within the Department of Defense, including the removal of senior military lawyers and the abolition of civilian harm mitigation teams. Critics argue these moves have systematically weakened the institutional safeguards designed to prevent war crimes.
From a geopolitical and market perspective, the legal accusations add a layer of "sovereign risk" to the U.S. position in the Middle East, though they are unlikely to trigger immediate domestic policy shifts. The Trump administration has consistently dismissed international legal bodies as biased or irrelevant to national security. However, the targeting of energy hubs like Kharg Island and South Pars has already sent ripples through global energy markets, with Brent crude volatility reaching its highest levels since the 2022 Ukraine crisis. While the legal experts' claims provide a framework for potential future sanctions or diplomatic isolation by U.S. allies, the immediate impact is largely symbolic, serving as a formal record of dissent against the current administration's "gloves off" military strategy.
The situation remains fluid as the U.S. military continues to maintain that its targets are strictly tied to Iranian military capabilities. Defense officials have countered the "war crimes" narrative by asserting that Iran uses civilian infrastructure to shield its paramilitary operations, thereby making those sites legitimate military objectives. This "human shield" defense is a standard counter-argument in modern urban warfare, though it rarely satisfies international observers when civilian casualty counts reach the thousands. As the conflict enters its second month, the tension between executive military power and international legal norms has reached a breaking point, with no clear mechanism for enforcement currently available to the UN or the International Criminal Court.
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