Donald Trump’s warning that the United States could strike Iran’s bridges and power plants unless Tehran agrees to reopen the Strait of Hormuz by Tuesday night has triggered a sharp legal and diplomatic backlash, with humanitarian law specialists and the International Committee of the Red Cross warning that threats against essential civilian infrastructure risk normalising conduct that could amount to war crimes. Trump said on April 6 that his deadline was final and dismissed criticism that such attacks could breach the laws of war.
The controversy centres on a basic rule of armed conflict: parties must distinguish between civilian objects and military objectives. Reuters reported last week that the Geneva Conventions and related legal standards forbid attacks on civilian objects, while allowing strikes only where an object makes an effective contribution to military action and where its destruction offers a definite military advantage. That leaves little room, legal analysts say, for sweeping public threats against a country’s wider civilian infrastructure, especially when power networks and transport links are deeply tied to hospitals, water systems, food supply chains and civilian survival.
Trump’s rhetoric has been unusually explicit. On April 2 he wrote that bridges would be next, followed by electric power plants, as he pressed Tehran to yield. Four days later he said the Tuesday deadline for a deal was unlikely to be extended, adding that he was “not worried” by accusations that such attacks could be war crimes. That language has widened concern beyond the immediate military standoff, because the issue is no longer confined to battlefield choices but now includes the public endorsement of attacks on facilities used every day by civilians.
Mirjana Spoljaric, president of the ICRC, responded on April 6 with a pointed warning that states must respect the rules of war “in both what they say and what they do”. She said deliberate threats, whether rhetorical or operational, against essential civilian infrastructure and nuclear facilities must not become a new norm in warfare. Her intervention matters because the Red Cross rarely addresses leaders’ language so directly unless it sees a broader danger to the legal restraints meant to shield civilians.
The legal concern is not abstract. Reuters’ explainer on attacks against civilian installations noted that international prosecutors have already treated the destruction of electricity and fuel infrastructure in other conflicts as a potential war-crimes issue. The report pointed to International Criminal Court warrants linked to Russia’s attacks on Ukraine’s power grid and to judicial findings in the Gaza case involving the deprivation of fuel and electricity. Those precedents do not make every strike on infrastructure unlawful, but they do show that courts and investigators increasingly examine whether attacks deprive civilians of objects indispensable to survival.
Supporters of Trump’s position argue that infrastructure can become a lawful target if it is used for military purposes. That is true as a matter of law, but it is only part of the test. The burden remains on the attacking party to show military necessity, proportionality and feasible precautions. Broad threats to hit power plants and bridges across a country, rather than identified dual-use facilities tied to specific operations, make that legal defence harder to sustain in the court of public opinion and potentially in any later judicial forum.
The timing has also intensified scrutiny. Trump’s ultimatum comes as diplomacy remains fragile and as oil markets react nervously to the threat of deeper disruption in the Gulf. Reuters reported that Brent crude rose to about $110 a barrel and US crude to more than $113 as traders weighed the risk of escalation around the Strait of Hormuz, the passage that normally carries roughly a fifth of global oil flows. Iranian forces have effectively shut the strait since the conflict widened after U. S. and Israeli attacks began on February 28, according to Reuters reporting, while Tehran has rejected a temporary ceasefire and insisted on a permanent end to the war.
The controversy centres on a basic rule of armed conflict: parties must distinguish between civilian objects and military objectives. Reuters reported last week that the Geneva Conventions and related legal standards forbid attacks on civilian objects, while allowing strikes only where an object makes an effective contribution to military action and where its destruction offers a definite military advantage. That leaves little room, legal analysts say, for sweeping public threats against a country’s wider civilian infrastructure, especially when power networks and transport links are deeply tied to hospitals, water systems, food supply chains and civilian survival.
Trump’s rhetoric has been unusually explicit. On April 2 he wrote that bridges would be next, followed by electric power plants, as he pressed Tehran to yield. Four days later he said the Tuesday deadline for a deal was unlikely to be extended, adding that he was “not worried” by accusations that such attacks could be war crimes. That language has widened concern beyond the immediate military standoff, because the issue is no longer confined to battlefield choices but now includes the public endorsement of attacks on facilities used every day by civilians.
Mirjana Spoljaric, president of the ICRC, responded on April 6 with a pointed warning that states must respect the rules of war “in both what they say and what they do”. She said deliberate threats, whether rhetorical or operational, against essential civilian infrastructure and nuclear facilities must not become a new norm in warfare. Her intervention matters because the Red Cross rarely addresses leaders’ language so directly unless it sees a broader danger to the legal restraints meant to shield civilians.
The legal concern is not abstract. Reuters’ explainer on attacks against civilian installations noted that international prosecutors have already treated the destruction of electricity and fuel infrastructure in other conflicts as a potential war-crimes issue. The report pointed to International Criminal Court warrants linked to Russia’s attacks on Ukraine’s power grid and to judicial findings in the Gaza case involving the deprivation of fuel and electricity. Those precedents do not make every strike on infrastructure unlawful, but they do show that courts and investigators increasingly examine whether attacks deprive civilians of objects indispensable to survival.
Supporters of Trump’s position argue that infrastructure can become a lawful target if it is used for military purposes. That is true as a matter of law, but it is only part of the test. The burden remains on the attacking party to show military necessity, proportionality and feasible precautions. Broad threats to hit power plants and bridges across a country, rather than identified dual-use facilities tied to specific operations, make that legal defence harder to sustain in the court of public opinion and potentially in any later judicial forum.
The timing has also intensified scrutiny. Trump’s ultimatum comes as diplomacy remains fragile and as oil markets react nervously to the threat of deeper disruption in the Gulf. Reuters reported that Brent crude rose to about $110 a barrel and US crude to more than $113 as traders weighed the risk of escalation around the Strait of Hormuz, the passage that normally carries roughly a fifth of global oil flows. Iranian forces have effectively shut the strait since the conflict widened after U. S. and Israeli attacks began on February 28, according to Reuters reporting, while Tehran has rejected a temporary ceasefire and insisted on a permanent end to the war.
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