Conversation so far:
How did Timur begin to attain power?
It was in this period that Timur reduced the Chagatai khans to the position of figureheads while he ruled in their name.
Did Timur accomplish that through battle or subterfuge?
Timur spent the next 35 years in various wars and expeditions.

Question: Did he go on to expand his people's lands?
Self-contained rewrite: Did Timur go on to expand his people's lands?