Complex sentence: Ayombekov had been a warlord during the 1992-1997 Tajik Civil War between the United Tajik Opposition and President Emomali Rakhmon, but had been given a government post in a subsequent peace deal.
Split into simpler sentences: Ayombekov had been a warlord during the Tajik Civil War between the United Tajik Opposition and the government as led by President Emomali Rakhmon. He was given a government post in a subsequent peace deal.