Complex sentence: Kagame previously commanded the rebel force that ended the 1994 Rwandan Genocide, and was considered Rwanda's de facto leader when he served as Vice President and Minister of Defence from 1994 to 2000.
Split into simpler sentences: Kagame previously commanded the rebel force that ended the 1994 Rwandan Genocide. He was considered Rwanda's de facto leader when he served as Vice President and Minister of Defence from 1994 to 2000.