Answer:
The horrors of ultranationalism left memories of shameful acts in history of mankind.
Explanation:
Ultranationalism occurs when nationalism is pushed to an extreme level in which, under one dominant elite, people are driven into dictatorship. Ultranationalism in pursuit of global prosperity resulted in racism and genocide. The twentieth century witnessed many countries adopted to ultranationalism which have led to numerous incidents of inhumanity including the Holocaust
, Saddam Hussein's attack on the Kurds
, the Armenian genocide, etc.
