US military contingency planning for Cuba has intensified amid the Trump administration’s broader pressure campaign, including expanded sanctions and an oil blockade aimed at forcing political change on the island. In late September 2026, reports detailed US Army Reserve assessments of support units—such as military police, medical, engineer, and logistics formations—that could fall under Southern Command within 90–120 days, though no deployment orders have been issued and the internal messages did not explicitly reference Cuba. President Trump has publicly downplayed the need for force, stating that a deal is likely and that Cuba is failing economically, while Cuban officials have condemned any potential action as an international crime and rejected characterizations of the country as a failed state. Additional developments include SOUTHCOM’s early October announcement positioning Guantanamo Bay for autonomous systems training. These factors, alongside stalled diplomatic talks and ongoing economic measures, shape trader assessments of near-term military action probabilities.