Animosity between Catholics and Protestants in Ireland goes back to the 16th century, when England’s rulers persecuted and exiled Catholics. The atrocities perpetrated by so - called Christians during the Crusades still arouse strong feelings among Muslims in the Middle East.
बाल्कन द्वीपकल्पांतील देशांपैकी सर्बियन व क्रोएशन लोकांमधील वैरभाव, दुसऱ्‍या महायुद्धात झालेल्या सामान्य नागरिकांच्या कत्तलींमुळे अधिकच तीव्र झाला.