Complex sentence: In terms of governance, the Comanches created a decentralized political system, based on a raiding, hunting and pastoral economy and a hierarchical social organization in which young men could advance through success in war.
Split into simpler sentences: In terms of governance, the Comanche created a decentralized political system, based on a raiding, hunting and pastoral economy. They created a hierarchical social organization in which young men could advance through success in war.