Executive Summary [footnotes omitted]:

“The situation was tragic. Body parts were everywhere. It was like the Day of Judgment.”
–Fadhl Al-Musabi, survivor of attack in Bani Qais District, Hajjah Governorate (April 22, 2018)

“I was still awake. I was sitting in a chair because I was afraid of the planes flying overhead and making a very loud noise. Then they dropped a bomb near us and afterwards they hit our neighborhood with three bombs. After that I lost consciousness.”
–Ahmad Mansour, 10 years old, wounded in Midi District, Hajjah Governorate (December 12, 2016)

Since March 26, 2015, Saudi Arabia and the United Arab Emirates (UAE) have led a coalition of countries in a military campaign against Ansar Allah (Houthi) rebels in Yemen. As documented by multiple human rights organizations as well as the UN, the Saudi/UAE-led Coalition has consistently attacked civilians and critical civilian infrastructure—including hospitals, schools, school children, weddings, farms, and water wells—in violation of the laws of war. The Coalition has also imposed a naval blockade on major ports in Houthi-controlled areas, obstructing imports of vital food and medical supplies to the war-ravaged country. In areas of Yemen under their control, Coalition forces have engaged in other human rights violations, including widespread arbitrary detention.

The Houthi armed group, which took over the capital city of Sana’a by force in late 2014 and then expanded its control to much of the country, has also violated the laws of war, including by indiscriminately shelling civilians, laying antipersonnel landmines, impeding humanitarian supplies, arbitrarily detaining individuals, committing acts of torture, and conscripting child soldiers.

Four years into the conflict, around 20,000 Yemeni civilians have been killed or wounded and half the population—14 million people—are at risk of famine, according to the UN. Other estimates, however, range much higher: ACLED has recorded over 50,000 reported deaths as a direct result of the fighting, and according to Save the Children, 85,000 children may have died of hunger and preventable disease.

Although happening thousands of miles from United States shores and hundreds of miles from Europe, the war in Yemen is closer to home than it might seem. Indeed, the US and UK actively enable the unlawful bombings of Yemeni civilians by Saudi/UAE-led Coalition forces. For decades, the US has provided Saudi Arabia and the UAE with arms and military training. Despite years of credible reporting on Coalition abuses in Yemen—and in blatant contravention of US arms trade law and international law, as this report details—the US continues to sell Saudi Arabia and the UAE weapons for use in Yemen. The US military has also provided the Coalition with intelligence, logistical support, targeting assistance, and training. This assistance has continued for years without the Congressional authorization required by US law. The UK, too, continues to sell Coalition countries arms for use in Yemen in direct violation of its obligations under the Arms Trade Treaty and EU Common Position on military exports.

On August 9, 2018, the Saudi/UAE-led Coalition struck a school bus, killing dozens of children. CNN identified the weapon used as a US-made Mk-82 bomb manufactured by Lockheed Martin. The school bus attack and widespread outrage in the US prodded many members of Congress to act, and rightly so. This report demonstrates a pattern of deadly Coalition attacks involving US weapons since the start of the conflict—a pattern that warrants swift and determined action by Congress.

Of the twenty-seven Saudi/UAE-led Coalition attacks documented in this report, weapons remnants indicating that a US-made weapon was likely involved were found in twenty-five cases and weapons remnants indicating that a UK-made weapon was likely involved were found in five cases.8 The suspension lug for a US-made bomb used in one of the attacks was produced in Italy.

These twenty-seven Coalition airstrikes include sixteen attacks on civilian gatherings, civilian homes, and a civilian boat; five attacks on educational and health facilities; five attacks on civilian businesses; and an attack on a government cultural center. The twenty-seven attacks killed at least 203 people and injured at least 749. At least 122 children and at least 56 women were among the dead and wounded. Many of the attacks appeared to take place far from any potential military target. Others caused harm to civilians that vastly outweighed any likely military benefit. In no case did it appear that Coalition forces took adequate precautions to minimize harm to civilians, as required by international humanitarian law.

Victims and survivors of these Coalition attacks often likened the devastation of the airstrikes to the “Day of Judgment.” In an April 2018 Coalition attack in Hajjah Governorate, a joyous wedding celebration quickly turned tragic when a US-made bomb exploded, killing at least twenty-one and injuring at least ninety-seven drummers, dancers, and wedding guests, including nearly sixty children. In a December 2016 attack on a civilian home, also in Hajjah Governorate, a US-made cluster bomb indiscriminately killed at least fifteen civilians—nine of them children—and wounded at least seven. 10-year-old Ahmad Mansour (quoted above) lost his mother and siblings in the attack, in addition to suffering extensive shrapnel injuries himself. These Saudi/UAE-led Coalition attacks demonstrate the manner in which the Coalition has conducted its campaign in Yemen, often with the assistance of US weapons.

The US-made munitions likely used in twenty-five attacks documented in this report include cluster bombs banned by international treaty due to their indiscriminate effects, Mark 80 series general purpose bombs, Paveway-series precision guided bombs, and bombs with the JDAM guidance system. All of these explosive weapons have wide-area effects and result in foreseeable civilian harm when used in populated areas.

The UK-made munitions likely used in five attacks documented in this report—including Paveway IV and “Hakim” precision guided bombs—damaged or destroyed several civilian businesses as well as an educational facility.

In recent weeks and months, as civilian casualties in Yemen have climbed and as the UN has warned of “the worst famine in the world in 100 years,” a number of European governments—including Germany, Denmark, the Netherlands, Finland, Austria, Belgium, Switzerland, and Norway—have taken measures to prevent arms exports for use in Yemen.

In the US, Congress appears closer than ever to taking meaningful action. Many members of Congress have committed to opposing future arms sales to Saudi Arabia and the UAE. On February 13, 2019, the House of Representatives passed a historic resolution to rescind US military support for the Coalition’s ongoing campaign in Yemen. The Senate is expected to vote on a parallel resolution in the next month.

Our findings reinforce prior evidence demonstrating that the Saudi/UAE-led Coalition is failing to fulfill its obligations under the laws of war and repeatedly using US weapons in apparently disproportionate and indiscriminate attacks that have resulted in widespread civilian casualties and other civilian harm in Yemen.

Time is of the essence. Millions of Yemenis are on the brink of starvation. Unlawful attacks continue, as the civilian toll of the conflict rises. A UN-brokered peace process may be on the brink of collapse. The US Senate must not delay in demanding an immediate end to US involvement in a brutal campaign that has brought death, destruction, and humanitarian catastrophe to the poorest country in the region. It is a moral and legal imperative for the US and remaining European states supplying Saudi Arabia, the UAE, and other Coalition countries with weapons for use in Yemen to halt these transfers immediately. Many lives depend on swift action by the United States and European governments.