Havana, Cuba (CNN) -- Proclaiming "I am a soldier for the Cuban revolution," a Cuban intelligence agent said Friday he has no regrets about the spying that landed him in U.S. prisons for more than a decade. "I felt that it was the right thing to do," René González said during a press conference in Havana. González was a member of the so-called "Cuban Five," a network of agents in South Florida that the Cuban government said was gathering intelligence to prevent terrorist attacks against Cuba. U.S. federal prosecutors called the network a dangerous undercover spy cell. The men were convicted in 2001 and ever since have been the focus of an international campaign by Cuban officials to free them.
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René González spent years in U.S. prisons after being convicted in 2001
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He was a member of the so-called "Cuban Five" network of Cuban agents
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Now back in Havana, he has renounced his U.S. citizenship as a U.S. judge required
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"I am a soldier for the Cuban revolution," González declares at a news conference
González said before leaving for the @placeholder, he was told by government officials that he could still back out of the mission.