Adversary Intelligence — 2026-05-24

WSJ Reports China and Russia Tripled Intelligence Personnel in Cuba With SIGINT Facilities Targeting US Military Bases

BLUFHavana is very unlikely to curb Chinese or Russian SIGINT activity on the island by year-end 2026, forcing Washington to absorb the collection threat through defensive measures rather than diplomatic pressure.

Unnamed U.S. officials told the WSJ Friday that the Cuban-based facilities are positioned to intercept communications from two Florida military headquarters overseeing Middle East and Latin American operations, with intelligence personnel nearly tripling since 2023 12. In December 2024, CSIS separately identified at least 12 Chinese SIGINT-linked facilities across four locations in Cuba, including one in Santiago de Cuba roughly 70 miles from Guantánamo Naval Base 1. On May 14, CIA Director Ratcliffe traveled to Havana and met with Cuban Interior Minister Lázaro Álvarez Casas and Raulito Rodríguez Castro, grandson of former President Raúl Castro, stating Cuba could no longer serve as a platform for adversaries advancing hostile agendas in the hemisphere 1. China's MFA spokesperson Lin Jian denied the allegations, describing Beijing's cooperation with Cuba as "legitimate, transparent, and in accordance with international law" 1.

Analysis
Cuba is very unlikely to take any publicly verifiable step to constrain Chinese or Russian SIGINT operations on its territory by year-end 2026. Ratcliffe's May 14 Havana visit produced no announced concession. Cuba's reported financial dependence on Chinese hosting payments eliminates any economic incentive to comply. The Beijing investment may instead serve primarily as strategic positioning to deter US military options against Havana rather than as an active collection platform against Florida commands. Low confidence attaches given reporting rests entirely on unnamed US officials via a single outlet with no independent corroboration. The Pentagon's June 2026 NDAA-mandated report becomes the policy trigger for accelerated counter-SIGINT hardening at USCENTCOM and USSOUTHCOM.

3 sources

U.S. Sounds Alarm: Rising Russian and Chinese Espionage in Cuba - Cuba Headlines
WSJ: Russia and China Expand Intelligence Operations in Cuba - Pravda Ukraine
U.S. Warns of Growing Russian and Chinese Spying in Cuba - Wall Street Journal