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Washington Tightens the Noose on Khartoum: New Sanctions and Confirmation of “Chemical” Use in Sudan
The Sudanese chemical weapons file has entered a new and decisive turning point, with a second round of U.S. sanctions taking effect on July 20th, 2026.
This comes amid firm American assertions that its independent technical analyses have proven beyond doubt that Sudanese army forces used banned chemical weapons, in flagrant violation of the Chemical Weapons Convention.
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This escalation came days after the session of the Executive Council of the Organisation for the Prohibition of Chemical Weapons (OPCW) in The Hague (July 7–10, 2026), where the United States delivered its strongest and clearest statement yet, demanding immediate and unrestricted access for international inspectors.
Washington affirmed that “the prohibition on the use of chemical weapons is absolute and non-negotiable,” stressing that the continued refusal of the Port Sudan government to acknowledge its violations and take serious steps to return to compliance would inevitably have “consequences.”
Washington bases its position on what it described as a “rigorous and independent national technical analysis” — an assessment reached by the U.S. State Department after careful study and officially announced in April 2025 — which formed the legal basis for imposing a first package of comprehensive sanctions that included suspending most U.S. assistance, banning arms sales, and ending military financing. After giving Khartoum a three-month grace period to comply, to no avail, the second round of sanctions took effect, including expanded export restrictions, U.S. opposition to loans and assistance from international financial institutions, along with additional financial and aviation restrictions.
In a decisive move, the United States categorically refused to rely on any national investigation conducted by the Sudanese authorities as a substitute for independent international verification. Washington affirmed that “local bureaucratic mechanisms are not a substitute for compliance with the treaty and independent verification.”
The American delegation clarified that Washington did not send investigators to Sudan or direct any internal investigation, but rather shared its assessment with the Sudanese authorities and urged them to fulfill their obligations. This position came in response to Khartoum’s claims that it had formed a national committee to investigate the allegations, with Washington considering that such a mechanism cannot replace the independent investigation conducted by the OPCW.
The chemical weapons file in Sudan carries dimensions that far exceed the internal conflict, representing a serious violation of international law and a direct threat to regional security. Chad expressed grave concern, warning that any possession or use of chemical weapons in Sudan constitutes a serious threat to the security of the entire region.
Notably, Sudan, which joined the Convention in 1999, currently holds a seat on the Organisation’s Executive Council — a fact that has raised American questions about the continued presence of a state accused of non-compliance in a decision-making position within the organization.
Washington affirms that its measures come within the framework of international responsibility to confront grave human rights violations and to protect civilians who are already suffering from one of the worst humanitarian crises in the world. The sanctions include clear exemptions for humanitarian and food aid, reflecting a concern not to exacerbate the suffering of the Sudanese people, while continuing to pressure violators of international law.
While Khartoum continues to deny the accusations and describe the sanctions as “unilateral and illegal,” Washington remains firm in its position, affirming that a return to compliance requires clear and immediate steps: a comprehensive declaration to the Organisation’s Technical Secretariat, unrestricted access for inspectors, and full cooperation with international verification mechanisms. The question that remains: will Khartoum choose the path of cooperation and transparency, or will it face further isolation and sanctions?
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