Complex sentence: The RLI served under the short-lived government of Zimbabwe Rhodesia in 1979, the interim British government that followed, and finally under the new government of Zimbabwe for a brief period before being disbanded in October 1980.
Split into simpler sentences: The RLI served under the short-lived government of Zimbabwe Rhodesia in 1979, and the interim British government that followed. After serving under the new government of Zimbabwe for a brief period, it was disbanded in October 1980.