How did warfare impact the political landscape of kingdoms during this period?

Warfare significantly impacted the political landscape of kingdoms during the 6th to 10th centuries, often leading to the rise and fall of empires. Military conquests allowed successful kingdoms to expand their territories and consolidate power. Conversely, defeats could result in the fragmentation of empires and the emergence of new political entities. Warfare also influenced alliances and rivalries, shaping the overall stability and governance of the regions involved.