The United States has refused to grant a visa to Sudanese army chief and de facto leader Abdel Fattah al-Burhan, blocking his planned UN General Assembly address. The decision is part of a pressure campaign by the US to force Sudan’s warring sides toward a humanitarian truce. Burhan’s government has rejected the proposal—a three-month ceasefire—on the grounds that it would help the RSF. One diplomatic source described the move as a violation of the US–UN headquarters agreement. The dispute has created tension with the UN, whose secretary-general urged the US to meet its obligations under the headquarters agreement. The decision, following similar denials to Palestinian and Iranian officials, signals deepening US frustration with a war that has killed over 200,000 people and produced the world’s largest displacement crisis.