Two broad sets of issues have been most important in giving rise to tribal movements. These are issues relating to control over vital economic resources like land and specially forests, and issues relating to matters of ethnic-cultural identity. The two can often go together, but with differentiation of tribal society they may also diverge. The reasons why the middle classes within tribal societies may assert their tribal identity may be different from the reasons why poor and uneducated tribals join tribal movements. As with any other community, it is the relationship between these kinds of internal dynamics and external forces that will shape the future.