Final answer:
African national dance and music troops had the purpose of preserving culture, promoting unity, and resisting oppression. They showcased traditional dance and music styles that conveyed messages and empowered communities.
Step-by-step explanation:
The purpose of African national dance and music troops was to celebrate and preserve African culture, promote unity and community, and serve as a form of resistance against oppressive systems. These troops showcased traditional dance and music styles, such as gumboot dancing and call and response, that were deeply rooted in African history and traditions.
Through their performances, African national dance and music troops conveyed messages, expressed emotions, and empowered individuals and communities.