National disaster (pardon, 'revolution') often comes from outside, sometimes heading northward -- Stalin was Georgian, Napoleon was Italian, Guevara was Argentine. Yes, I consider Napoleon a national disaster, and no, not just for France.
(They must have thought it was like 'lobster sauce'. Are they going to go vegetarian?....)
How the world was lost:The African population of Zimbabwe had increased from an estimated 300,000 in 1890 to 7 million in 1980. This phenomenal increase was the result of the development of a modern infrastructure, first-world health standards and the bountiful crop harvests produced by the white Rhodesian farmers.
By July 2006, the population had almost doubled to 13 million, the result of a symbiotic relationship that had been forged between the 3,400 commercial farmers and the other inhabitants. (IMPACT newsletter)