Complex sentence: Al-Kharrat was killed in a French ambush in the Ghouta, and the revolt dissipated by 1927, but he gained a lasting reputation as a martyr of the Syrian resistance to French rule.
Split into simpler sentences: Al-Kharrat continued to lead operations in the Ghouta, where he was ultimately killed in a French ambush. The revolt dissipated by 1927, but he gained a lasting reputation as a martyr of the Syrian resistance to French rule.