Complex sentence: The Ashantis (or Asantefo) are of Akan origin, the Ashantis are a powerful, martial, and highly disciplined society of West Africa inhabiting an area known as "Akanland".
Split into simpler sentences: The Ashantis (or Asantefo) are of Akan origin. They (Ashantis) are a powerful, martial, and highly disciplined society of West Africa inhabiting an area known as "Akanland".