The U.S. Army Reserve is checking whether several kinds of support formations could be available for U.S. Southern Command within the next four months, according to an internal Army message reviewed by CBS News. The message asks subordinate commands to report on units that could “possibly [be] needed in 90-120 days,” with feedback due September 25.
CBS News reported that the document itself does not mention Cuba. Multiple unnamed U.S. officials linked the request to continuing military planning focused on the island, but the message gives no troop total, destination or specific operation. It also contains no deployment orders.
The formations under review include logistics, engineering, medical and military-police units. CBS said the list includes a combat sustainment support battalion, an expeditionary sustainment command, an engineer battalion, a medical brigade, a forward surgical detachment and a military police brigade.
U.S. Southern Command told CBS that it routinely coordinates with the military services to assess possible requirements across its region, while declining to discuss movements or potential timelines for operational-security reasons. The Army Reserve did not respond before CBS published its report. The 2026 U.S. intelligence community threat assessment says Russia is seeking to expand security and diplomatic ties with Cuba, but it does not describe or authorize a U.S. military operation.
