Russia and Cuba have agreed to reopen the signals intelligence (SIGINT) base in Lourdes, Cuba, which was primarily used to spy on the U.S., Russian business daily Kommersant reports.

The base was set up in 1964 after the Cuban missile crisis and is 155 miles from the U.S. coast. Havana shut it down in 2001 because of financial issues and American pressure.
http://www.businessinsider.com/russi...in-cuba-2014-7

An additional blow came in July 2000, when the US House passed the Russian-American Trust and Cooperation Act, a bill that would ban Washington from rescheduling or forgiving any Russian debt to the US, unless the facility in Lourdes is shut down.

Moscow did so in 2001 and also closed its military base in Vietnam’s Cam Ranh, with both moves reported as major steps to address Americans’ concerns. But, in the words of a military source cited by Kommersant, the US “did not appreciate our gesture of goodwill.”
http://rt.com/news/173092-russia-sigint-facility-cuba/

Oops.

http://cryptome.org/jya/rusigint.htm