Complex sentence: In response to the Iranian Revolution, several Iraqi Shi'ites revolted against what they saw as a Sunni-led government, which led to the collapse of the Ba'ath Party in certain areas of the country.
Split into simpler sentences: In response to the Islamic Revolution in Iran several Iraqi shi'ites revolted against what they saw as a sunni-led government. This revolt led to the collapse of the Ba'ath Party in certain areas of the country.