US Army Reserve assesses unit readiness for potential operations directed at Cuba

Internal readiness directive for Southern Command

An internal US Army directive instructs the US Army Reserve to evaluate whether it can supply support units to US Southern Command over the next four months. The document asked subordinate commands to report back by 25 September 2026 on the availability of forces that could be required within 90 to 120 days. Although the memo contains no direct reference to Cuba, several US officials speaking on condition of anonymity stated that the readiness review forms part of active military planning concerning the island. The directive does not constitute an active deployment order, and no troop numbers are specified in the text. US Southern Command oversees American military operations across Central America, South America, and the Caribbean.

Requested formations and logistical framework

The Army Reserve inquiry identifies six specific unit categories needed to support potential regional operations. These formations include a combat sustainment support battalion tasked with managing transport, equipment maintenance, fuel distribution, and supplies, alongside an engineer battalion. The planning document also outlines requirements for an expeditionary sustainment command to supervise logistics across the entire theater. In addition, commanders are evaluating the availability of a military police brigade, a medical brigade to coordinate field health services, and a forward surgical detachment for emergency trauma care. A Southern Command spokesperson declined to discuss operational timelines, stating that the command continuously coordinates with the Joint Force to assess potential mission requirements.

Intelligence operations and prior readiness steps

The logistical assessment follows several preparatory activities conducted by US forces throughout 2026. Earlier in the year, US military units carried out reconnaissance missions mapping the seabed and maritime approaches around Cuba. US Air Force components were previously placed on elevated readiness and assigned to pre-deployment staging, though that deployment was not executed. In August 2026, the Central Intelligence Agency established a dedicated operational task force focused on Cuba. The intelligence unit coordinates information and influence initiatives intended to accelerate political changes in Havana and identify divisions within the Cuban leadership.

Political and economic escalation

The military planning coincides with economic and diplomatic measures directed at Havana by the administration of US President Donald Trump. In addition to the trade embargo in place since 1962, Washington has enforced an oil blockade against Cuba following the capture of Venezuelan President Nicolas Maduro in January 2026. Tensions escalated at the United Nations General Assembly when the Cuban diplomatic delegation walked out during a speech by Trump.

“It is a state that has failed completely. It is failing like never before and will end up falling.”

Trump stated that Secretary of State Marco Rubio is leading the administration's efforts to achieve fundamental political change on the island. In June 2026, Trump noted that the administration would address Cuba after concluding military actions in Iran, stating an intention to remove the governing regime in Havana.