Africa- Africa started its downfall after the droughts, overpopulation, and neglect by the government. They have low soil fertility as well making it harder to grow crops.
America- America has suffered plenty of damage over the years poverty, global warming, deforestation and plenty more. They dollar has lost a lot of its value as well, proof of this is in 1960 a single pack of gum was 5 cents, now its $4+. Inflation is heavily impacting the American country.