Complex sentence: He was impressed with the progress made there since the Civil War, and concluded that this was due to the strong leadership of Mao Zedong, whose centralization of power was in sharp contrast to the political disorder in Indonesia.
Split into simpler sentences: He was impressed with the progress made there since the Civil War. He concluded that this was due to the strong leadership of Mao Zedong, whose centralization of power was in sharp contrast to the political disorder in Indonesia.