Ana Belen Montes (Born February 28, 1957) is a former senior analyst at the Defense Intelligence Agency (DIA) in the United States. On September 21, 2001, she was arrested and subsequently charged with Conspiracy to Commit Espionage for the government of Cuba. Montes eventually pleaded guilty to spying and in October 2002, was sentenced to a 25-year prison term followed by five years probation.