US military contingency planning for Cuba has intensified amid ongoing economic sanctions and an oil embargo, with September 2026 reports detailing Army Reserve assessments for logistics, medical, police, and sustainment units potentially supporting Southern Command within 90-120 days. Earlier reconnaissance operations and airpower readiness measures fueled speculation, though no deployment orders exist and officials describe the work as standard contingency preparation. President Trump has repeatedly stated that military action is unnecessary, predicting a bilateral deal while describing Cuba as a failing state and expressing interest in opening the island economically. Diplomatic channels remain active without formal negotiations, as Havana rejects any political system changes and continues defensive preparations. Recent fuel shipment interceptions underscore sustained pressure short of kinetic operations.