Complex sentence: In theory, self-governing Bantustans had control over many aspects of their internal functioning but were not yet sovereign nations while independent Bantustans (Transkei, Bophutatswana, Venda and Ciskei; also known as the TBVC states) were intended to be fully sovereign.
Split into simpler sentences: In theory, self-governing Bantustans had control over many aspects of their internal functioning but were not yet sovereign nations. Independent Bantustans (Transkei, Bophutatswana, Venda and Ciskei; also known as the TBVC states) were intended to be fully sovereign.