Five years ago, a Cuban airforce defector in a MIG-29 fighter aircraft -- flying undetected until outside Key West, Florida -- confirmed that he had trained to attack the Turkey Point nuclear power facility in South Florida.
Recently, Syria has attempted to get some of its Mi-24 attack helicopters refurbished by Russia -- a move which prompted an international outcry -- and has ordered Yak-130 advanced training jets and MiG-29 fighter jets that have yet to be delivered.