1. Racial discrimination and prejudice: Racial discrimination and prejudice in history is one of the main sources of racial conflicts. Racist thoughts and behaviors can lead to tension and conflict between races.
2. Competition for economy and resources: unfair distribution of resources and widening economic gap may lead to ethnic conflicts. When minorities or ethnic groups are marginalized and deprived of economic opportunities and resources, they may feel angry and dissatisfied, and then they will oppose other races.
3. Political power struggle: Fighting for political power is also an important factor in ethnic conflicts. When there is political oppression, exclusion or even violent repression between different races or nationalities, ethnic conflicts may break out.
4. Cultural and religious differences: Cultural and religious differences may also lead to ethnic conflicts. The conflict of cultural beliefs, values and customs between different races or nationalities, lack of mutual understanding and respect, may lead to tension and conflict.
5. Territorial disputes and border issues: Territorial disputes and border issues may also be the trigger of ethnic conflicts. Conflicts may occur when different races or nationalities dispute the ownership of a particular territory.
It should be noted that the causes of ethnic conflicts may be different in different regions and situations, which are just some common factors. The emergence of racial conflict is a complex social phenomenon, which needs the comprehensive action of many factors to be fully explained.