Secret Dossier Adds to CW Evidence in Sudan

October 2026

A dossier leaked by a Middle Eastern intelligence agency to The New York Times provides new evidence that Sudan developed and produced chlorine as a chemical weapon over six months in 2024.

The dossier builds on April 2025 U.S. allegations of Sudanese chemical weapon use in 2024. During the 112th session of the Executive Council of the Organisation for the Prohibition of Chemical Weapons (OPCW) July 7-10, the United States doubled down on these accusations and called for independent verification and access. (See ACT, September 2026.) The United States has never publicly provided evidence for its accusations.

According to The New York Times, the new dossier contains photographs, videos, and documents that show a “secretive Sudanese military unit said to have produced chlorine-based munitions for use against the Rapid Support Forces.” The newspaper said it obtained the dossier on the condition that the source not be identified.

The Sudanese Armed Forces has been at war with the opposition Rapid Support Forces since April 2023. The U.N. Office for the Coordination of Humanitarian Affairs estimates that 33.7 million Sudanese people—more than two-thirds of the population—are in desperate need of life-saving support, as of Aug. 24, 2026.

As a member of the OPCW since May 1999 and a state-party to the Chemical Weapons Convention since June 1999, Sudan is legally prohibited from any chemical weapon use. The Sudanese government continues to reject allegations thereof.—LIBBY FLATOFF