Complex sentence: Frank Charles Carlucci III (born October 18 1930) was a government official in the United States associated with the Republican Party who was United States Secretary of Defense from 1987 until 1989.
Split into simpler sentences: Frank Charles Carlucci III (born October 18 1930) was a government official in the United States, associated with the Republican Party. He was United States Secretary of Defense from 1987 until 1989.