That's more because of the embargo than anything Cubans did. And even given that, they do way better than most latin american "free" nations.
>His most notable achievement with regards to Africa was sending soldiers to extend the life of wars.
Let's not go into which country, besides Germany and USSR, started more wars, meddled in more places, held more peopls down by installing friendly dictators in power, and caused more hurt in the 20th/21st century...