The First Blood War refers to the initial conflict between the Blood Elves and the Scourge in the world of Azeroth. This war was marked by the Blood Elves' struggle to reclaim their homeland and restore their lost power after the devastation caused by the Scourge's invasion. During this period, the Blood Elves sought alliances with other factions, including the Horde, to combat the Scourge's relentless attacks. The war significantly shaped the political landscape of Azeroth and set the stage for future conflicts involving the Blood Elves and their allies.