Water as a Weapon

"In no event shall combatants attack, destroy, remove, or render useless waters and water installations indispensable for the health and survival of the civilian population." — Berlin Rules on Water Resources, International Law Association, 2004

On June 10, US precision munitions destroyed two concrete water storage reservoirs in Bemani, in Iran's Hormozgan Province, cutting off drinking water to more than 20,000 residents across ten villages. Temperatures in the region were between 45 and 50 degrees Celsius. Emergency tanker trucks were dispatched. The reservoirs — two facilities with a combined capacity of 2,500 cubic meters, belonging to the Hormozgan Water and Wastewater Company — are gone.

The munitions involved were identified by weapons experts as GBU-39 series precision-guided bombs, US-made, US-exclusive. Satellite imagery analyzed by the New York Times confirmed the strike pattern. US Central Command said it was "aware of the reports and looking into the situation." That is the full extent of the official US accounting.

It was not the first time. On March 7, in the opening days of the war, Iran accused the US of striking a freshwater desalination plant on Qeshm Island in the Strait of Hormuz, disrupting water supplies to 30 villages. The US denied the attack. The denial was noted. The water stopped flowing either way.

Iran entered this war in its sixth consecutive year of drought — a crisis described by climate scientists as unprecedented in modern times. The World Resources Institute had already characterized Iran's trajectory, before a single bomb fell, as heading toward "water bankruptcy." Tehran's main reservoirs were at roughly 11 percent capacity. The Amir Kabir Dam, forty miles northwest of the capital, sat at around 8 percent. Last year, protests over water and electricity shortages spread across multiple provinces. Farmers blocked roads. Students demonstrated.

The Berlin Rules on Water Resources, adopted by the International Law Association in 2004, are unambiguous: combatants shall not attack, destroy, remove, or render useless waters and water installations indispensable for the health and survival of the civilian population. Additional Protocol I to the Geneva Conventions has said the same since 1977. The Rome Statute codifies intentional attacks on civilian infrastructure as a war crime. The legal architecture protecting water in conflict is not obscure. It is foundational.

What makes the Sirik strike legally significant beyond the document trail is the weapon itself. A GBU-39 is a precision-guided munition. Its purpose is to hit what it is aimed at. The argument that civilian water reservoirs in a drought-stricken region were struck by accident runs directly against the weapon's design rationale. US Central Command has offered no military justification for those specific targets. The absence of explanation is itself a form of answer.

Iran's Foreign Ministry called it a calculated war crime. The head of Hormozgan's water authority confirmed both reservoirs were destroyed. A spokesperson for Iran's water industry used the same language. The UN High Commissioner for Human Rights noted that Iran was already classified as facing "extremely high" baseline water stress. Destroying desalination plants and water reservoirs under those conditions does not disrupt military logistics. It makes people thirsty.

Ninety miles across the Florida Straits, roughly one million Cubans now depend on water tanker trucks for drinking water — a service the fuel blockade has made nearly impossible to operate. Not because of drought. Not because of war. Because they do not have enough diesel to run the trucks that deliver it.

The mechanism here is different. There are no precision munitions, no satellite imagery of collapsed rooftops. The Trump administration's fuel blockade — imposed through emergency executive powers in January and progressively tightened since — has removed the energy Cuba needs to pump water, run hospitals, keep food refrigerated, and maintain the basic circulatory systems of an inhabited island. The UN warned of potential humanitarian collapse in April. The High Commissioner for Human Rights stated that children were dying because doctors lacked access to essential medical supplies. The administration responded by sanctioning Cuba's state oil company.

Hurricanes Oscar, Rafael, and Melissa struck Cuba in successive years between 2024 and 2025, repeatedly damaging water infrastructure with no interval for recovery. One-third of the population in affected areas already lacked safely managed water services before the blockade tightened. The blockade then removed the fuel needed to operate what remained.

The legal categories differ. A precision strike on a water reservoir is, on its face, a war crime under established international humanitarian law. An economic blockade that foreseeably eliminates civilian water access is — depending on intent and proportionality analysis — potentially a violation of international human rights law, but the evidentiary and jurisdictional threshold is different and harder to meet. International law has historically been more permissive of economic coercion than of direct military strikes, a distinction that has always been more lawyerly than moral.

The moral structure is identical. In both cases, a civilian population is being denied water as a consequence of state policy decisions made in Washington. In Iran, the denial is acute and direct — two reservoirs destroyed in a single night by identifiable munitions. In Cuba, it is chronic and systematic — a fuel architecture dismantled over months, with entirely predictable consequences for a million people who need trucks to get water to their taps.

Medieval siege commanders knew that cutting off or poisoning the water supply was the fastest path to surrender. The tactic is as old as warfare itself, which is precisely why international law developed specific and absolute prohibitions against it. Those prohibitions were not invented by idealists. They were codified in response to the demonstrated human cost of treating water as a military instrument.

The same administration that struck Iran's water infrastructure in the context of active combat is simultaneously operating an economic blockade that has left a million Cuban civilians without reliable water access. One action is framed as self-defense. The other is framed as pressure for democratic reform. Both produce the same result in the lives of people who had no vote in either decision.

The word for using water denial as a tool of coercion against civilian populations is not strategy. It is not policy. Across two thousand years of recorded warfare, and across two countries in the same month of the same year, it has only ever had one name.

Sources:

Iran — June 10 Sirik strike

  • New York Times — satellite imagery analysis confirming the strike pattern
  • CNN — GBU-39 munitions identification by weapons experts; CENTCOM statement
  • Al Jazeera — Sirik, Jask, Minab, Qeshm, Bandar Abbas strike context; Berlin Rules framing
  • Truthout — Hormozgan Water and Wastewater Company identification; 20,000 figure; restoration caveat
  • Common Dreams — 2,500 cubic meter combined capacity; Iranian Foreign Ministry statement; ten villages

Iran — March 7 Qeshm Island strike

  • Al Jazeera / Aaj English TV — Araghchi accusation; 30 villages; US and Israel denial
  • Wikipedia (2026 Qeshm Island desalination plant attack) — date, attribution, denial

Iran — water crisis background

  • CNN (December 2025) — sixth consecutive drought year; unprecedented in modern times; reservoir levels
  • World Resources Institute (March 2026) — "water bankruptcy" framing; five consecutive years prior to war
  • CSIS / Circle of Blue (February 2026) — fifth consecutive year for Tehran specifically; satellite imagery analysis
  • World Weather Attribution (November 2025) — five-year drought severity; climate change attribution

Legal framework

  • Berlin Rules on Water Resources, ILA 2004 — armed conflict provisions (Article text via cawater-info.net PDF)
  • ICRC online casebook — Additional Protocol I, Article 54; Rome Statute war crimes codification
  • Additional Protocol I to the Geneva Conventions — Article 54 (civilian object protection)

Cuba

  • Axios (May 2026) — one million Cubans without reliable water access; UN sourcing; diesel shortage mechanism
  • UN News (April 2026) — humanitarian collapse warning; fuel blockade timeline
  • Common Dreams (June 2026) — UN High Commissioner statement; children dying; CUPET sanctions
  • CSIS (April 2026) — hurricane damage to water infrastructure; one-third of affected population without safely managed water; WFP figures
  • Senator Markey letter to Trump (February 2026) — embargo mechanics; oil blockade executive powers

One sourcing caveat worth flagging: the Qeshm Island March 7 strike rests primarily on Iranian government accusations and a US/Israeli denial, with no independently verified munitions analysis comparable to the Sirik strike.