Cuba was designated as a State Sponsor of Terrorism in 1982 because of its long history of providing advice, safe haven, communications, training, and financial support to guerrilla groups and individual terrorists.  This designation was rescinded in 2015.  Cuba maintains close and collaborative ties with designated state sponsors of terror such as Iran and North Korea.  The Cuban regime continues to host ELN leaders associated with now-defunct peace talks to reside in Cuba, despite Colombia’s repeated requests for their extradition.  Cuba also continues to harbor multiple fugitives who committed or supported acts of terrorism in the United States.  The U.S. Department of State certified Cuba as “not cooperating fully” with U.S. counterterrorism efforts for 2019, the first such certification of Cuba since 2015.

https://www.state.gov/reports/country-reports-on-terrorism-2019/cuba/#:~:text=Overview%3A Cuba was designated as,designation was rescinded in 2015.