The only thing you need to do, to rid Africa of war and poverty, is stop giving them Weapons, (directly and indirectly through Israel and Albania, etc..)
And stop giving them ALL aid. That's right Give them NOTHING > NO Loans, no "humaniterian" cash payments, nuthing. Null. Not even Food.
Give it 2 to 3 years, watch your prices soar because the big companies can't get cheap raw materials, and soon enough, you have a new super power with nearly all of the diamonds, and oil.
A corrupt govornment can't last very long if their ammo runs out, and the people simply start doing work instead of trying to geta cut of the "Aid"
Simple - but not gonna happen.