Africa's last. I don't want my army to catch AIDS or Bubonic Plague or whatever the fuck they have down there. If I need a good source of minions, I'm going to China and Mexico, and the Middle East for military minions. They're used to crazily radical dictators anyways, a shift to a global superpower wouldn't be much different.
Why bother trying to train a bunch of uncivilized people when I can just pick up where Mao, Saddam, Kim Jong-Il, et al., left off?
~D-Draw