1 The argument -- 2 Ethnic cleansing in former times -- 3 Two versions of "we, the people" -- 4 Genocidal democracies in the new world -- 5 Armenia, I : into the danger zone -- 6 Armenia, II : genocide -- 7 Nazis, I : radicalization -- 8 Nazis, II : fifteen hundred perpetrators -- 9 Nazis, III : genocidal careers -- 10 Germany's allies and auxiliaries -- 11 Communist cleansing : Stalin, Mao, Pol Pot -- 12 Yugoslavia, I : into the danger zone -- 13 Yugoslavia, II : murderous cleansing -- 14 Rwanda, I : into the danger zone -- 15 Rwanda, II : genocide -- 16 Counterfactual cases : India and Indonesia -- 17 Combating ethnic cleansing in the world today