Complex sentence: The'Centre', led by Pol Pot, had a strongly nationalistic ideology, and did not cooperate with Vietnam, receiving most of its support from China; it also opposed Sihanouk, regarding him as a'feudal' figure.
Split into simpler sentences: The'Centre', led by Pol Pot, had a strongly nationalistic ideology, and did not cooperate with Vietnam, receiving most of its support from China. It also opposed Sihanouk, regarding him as a'feudal' figure.