[jester]

I can think of a lot of reasons why they would get out of Africa.

They can't maintain their lines of communication and supply in Africa. They see the writing on the wall, that Africa even its true believers won't be controlled by Havana and its advisors and personnel will be tolerated but only to an extent. Or, they have even been told informaly of course they are no longer welcome.

Although, I really don't think true revolutionaries would care if their people were left behind to fend for themselves. After all the individual is nothing compared to the people and easily sacrificed. Other than face or propaganda I just don't see Cuba really giving a damn if its people were left to be sliced to ribbons by pangas dripping red with blood....unless they could use it for political/propaganda purposes.