I won't argue either... It seems I misunderstood your first comment. Sorry. Just for the sake of clarification, regarding ETA I'm aware there several versions of the story, but those 2010-ish US terrorism reports are not understandable when the very Spanish government was stating the contrary [+]. About the Colombian conflict, I've heard of the Cuban support to National Liberation Army (ELN) but never of any military support to Revolutionary Armed Forces of Colombia (FARC).

[+] (Spanish) http://www.lavozlibre.com/noticias/ampliar/1041341/moratinos...