Complex sentence: The Yuan army under Kublai's Kipchak general Tutugh reoccupied the Kyrgyz lands in 1293 and, from then on the Empire of the Great Khan controlled Central and Eastern Siberia.
Split into simpler sentences: The Yuan army under Kublai's Kipchak general Tutugh reoccupied the Kyrgyz lands in 1293. From then on the Empire of the Great Khan controlled Central and Eastern Siberia.