WTF?  Can't believe that one of the most prolific case has been left out...Just shows how much Africa has been ignored over the ages:

King Leopold and his 'wool over eyes pulling' Belgian farce in the Congo: 13 million deaths. 

Many disagree that it was a genocide as they say the mass deaths happened as a result of a forced labor system...Bull Shit!  IMO, It was a genocide that the world turned a blind eye to.  Who the hell back then cared about what took place in the Dark Continent as long as Europe and the US kept expoliting the rest of the impoverished but mineral rich nations?  This was a genocide (of the black race) however, not one that was undertaken for religious, social or political balance (in actuality: greed)!