GENOCIDE 

"Genocide has been defined as the deliberate killing of people based on their ethnicity, nationality, race, religion, or (sometimes) politics, as well as other deliberate action(s) leading to the physical elimination of any of the above categories. There is disagreement over whether the term genocide ought to be used for politically-motivated mass murders in general (compare "democide"), but in common use it simply refers to the deliberate mass murder of civilians. The deaths of over 40 million people in the past 100 years have been attributed to acts of genocide and other acts of state violence."  This deifnition is excerpted from Wikipedia.  To read much more, click on Wikipedia Genocide