Final answer:
The conflicts that have been raging in Nigeria since the 20th century are primarily between Christians and Muslims. These conflicts are not only about religious differences but also involve political and ethnic divisions.
Step-by-step explanation:
The conflicts that have been raging in Nigeria since the 20th century are primarily between Christians and Muslims. These conflicts are not only about religious differences but also involve political and ethnic divisions. For example, the Nigerian Civil War in the late 1960s was fought between the Nigerian government, which was predominantly Christian, and the secessionist state of Biafra, which had a significant Christian population. The conflicts in Nigeria have been fueled by issues such as control over resources, power struggles, and grievances related to the distribution of wealth.