Cuban border guards standing in a watch tower at the border between Cuba and the US in Caimanera, Cuba
Cuban border guards in a watch tower at the border between Cuba and the US in Caimanera, Cuba, in 2018.
  • Suspected spy bases linked to China are expanding in Cuba, per a US think tank.
  • The Center for Strategic and International Studies found a new potential site near a US naval base.
  • Cuba's proximity to the US gives China an intelligence window that is unreachable from its own land.

Potential spy bases believed to be linked to China have been found in Cuba, with one near the Guantánamo Bay US naval base, according to a report by the Washington DC-based Center for Strategic and International Studies.