Are we watching a military campaign or a series of international law violations? That's the question currently haunting the halls of the Pentagon and the classrooms of every major law school in the country. If you've followed the headlines lately, you've seen a staggering number—over 100—of international law experts signing their names to a letter that doesn't just "express concern." It basically accuses the U.S. government of committing war crimes in its ongoing strikes against Iran.
The situation isn't just about politics or "tough" foreign policy anymore. It's about the technical, messy, and often ignored rules of armed conflict. When experts from Harvard, Yale, and Stanford all jump on the same boat to warn about potential war crimes, it's time to stop looking at the explosions and start looking at the legalities.
The Red Line Between Strategy and Crime
To understand why these experts are sounding the alarm, you have to look at the UN Charter. Under international law, you can't just hit another country because you don't like what they're doing or because they're "threatening." You generally need one of two things: an actual or imminent armed attack (self-defense) or a green light from the UN Security Council.
According to the open letter published on Just Security, neither of those happened here. Iran didn't launch a direct attack on U.S. soil or Israel before the February 28 strikes began. The administration's argument for "preemptive" action is, in the eyes of many legal scholars, a paper-thin excuse that doesn't meet the high bar of "imminent threat." If the foundation of the war is illegal (jus ad bellum), then every missile launched is essentially a violation of international law.
No Stupid Rules of Engagement
The rhetoric coming out of Washington hasn't helped the legal case. Defense Secretary Pete Hegseth made waves in early March when he claimed the U.S. wouldn't be hindered by "stupid rules of engagement." In the world of international humanitarian law, those "stupid rules" are actually the Geneva Conventions.
One of the most alarming specific incidents cited by experts is the strike on the Minab primary school on the first day of the war. The Iranian Red Crescent reported that 175 people, many of them children, were killed in a single strike. While the U.S. military initially downplayed the incident, they later elevated their investigation after internal reports suggested U.S. forces were indeed responsible.
Under the laws of war, you have a duty to distinguish between military targets and civilians. When you hit a school, the burden of proof is on you to show that it was a legitimate military objective. "Mistakes" only go so far in a court of law, especially if those mistakes are born from a policy of "no mercy" or "no quarter."
Targeting the Lifeblood of a Nation
It’s not just the direct casualties that have people worried. It’s the choice of targets. President Trump’s recent televised speech mentioned hitting Iran’s power plants and desalination facilities "extremely hard."
Here is the problem: International law protects "objects indispensable to the survival of the civilian population." If you blow up a power plant, you aren't just turning off the lights for the military; you're cutting off electricity to hospitals, water pumps, and homes. This leads to what experts call "reverberating harm."
- Desalination plants: In an arid region, these are the only source of drinking water.
- Oil infrastructure: While it fuels the military, it also pays for the country’s food and medicine imports.
- Prisons: Amnesty International has raised the alarm about strikes near facilities like Evin prison, where thousands of protesters and non-combatants are held.
When a leader says they want to bring a nation "back to the Stone Ages," they're essentially admitting to targeting the civilian fabric of that society. In a legal sense, that's a confession of intent to commit a war crime.
The Problem of Proportionality
Even if you assume the U.S. has a right to hit back, there's the issue of proportionality. You can't drop a 2,000-pound bomb on a whole neighborhood just to get one guy with a drone controller. The expected civilian harm can't be "excessive" compared to the direct military advantage gained.
The experts' letter points out that the U.S. has recently abolished "civilian environment teams"—the very groups designed to calculate these risks before a strike happens. Without those safeguards, and with the 2026 National Defense Strategy reportedly omitting references to international law, the guardrails are gone.
What This Means for You
You might think this is just academic debating, but it has real-world consequences for how America is viewed on the global stage. If the U.S. ignores the UN Charter, it makes it much harder to tell other countries they should follow the rules. It also puts U.S. service members at risk of future prosecution in international courts, or even in foreign domestic courts under "universal jurisdiction" laws.
If you’re concerned about how this war is being conducted, your best move is to stay informed beyond the soundbites. Look at the specific reports from the International Committee of the Red Cross (ICRC) and Human Rights Watch. These organizations provide the ground-level data that lawyers eventually use in court.
Don't just take the government's word for it when they say a strike was "precise." Precision is a technical term, but it doesn't mean "lawful." Check the casualty counts from independent sources like the Iranian Red Crescent or the UN High Commissioner for Human Rights. Pressure your representatives to demand transparency on the "rules of engagement" being used in this conflict. If the rules are being ignored, the consequences won't just stay in Iran—they'll follow the U.S. for decades.
