The United States has warned that Sudan's civil war risks spilling into neighboring Chad and beyond.
Massad Boulos, the US senior adviser for African affairs, said in an August 26 post on X that he had discussed the strikes by telephone with Chadian President Mahamat Idriss Deby Itno.
“We discussed the recent SAF [Sudanese Armed Forces] aerial strike on Chad and underscored our deep concern about the war in Sudan spilling across its borders, fueling further escalation, and threatening regional peace and stability. External financial and military support to the warring parties must stop,” Boulos said.
His remarks followed an August 20 incident in which Chad's army accused the SAF aircraft and drones, or their allies, of bombing a convoy more than 100 km inside Chadian territory in Mourdi, Ennedi-Est Province.
Since December 2025, clashes between the Sudanese army and its allied Joint Force against the paramilitary Rapid Support Forces for control of al-Tina have spilled into Chad's eastern border.
Tensions spiked on March 18 when a drone strike killed 17 civilians on the Chadian side, prompting Deby to close his country's 1,300 km border and order retaliation against further attacks. The closure came after weekend clashes in al-Tina killed five Chadian soldiers and three civilians, with a dozen more injured.
Sudan's south-western border with the Central African Republic has also seen repeated cross-border attacks involving troops affiliated with Wagner and Sudanese militants loyal to the RSF. In January, Wagner fighters expelled RSF police officers and closed a major road linking the two countries.
Separately, Washington has welcomed the first ceasefire monitoring mission in eastern DR Congo. Observers deployed to Minembwe in South Kivu on August 24 under the Qatar-led Doha process.
Boulos said the Expanded Joint Verification Mechanism Plus (EJVM+) "transforms written commitments into concrete actions," following an August 17–21 retreat in Switzerland where Kinshasa and the Congo River Alliance/March 23 Movement (AFC/M23) agreed a roadmap toward a final peace agreement.
