Alaitoc craftworld lies in the eastern edge of the galaxy, the frontier region which has never been reconquered by the Imperium. Before the days of the Imperium it was colonised by humans, Orks and Eldar, and even now it remains a sprawling zone of border empires and outlaw worlds.

This melting pot of races and cultures lies far away from the immediate threat of Chaos, but even so the threat cannot be ignored. Numerous parties of Eldar Rangers, who retain their ties to the Alaitoc craftworld, explore and patrol the thousands of worlds beyond the reach of the Imperium. They secretly monitor the isolated civilisations and strange races that live there. All Eldar craftworlds have Rangers, but the stringent devotion to the Path of the Eldar that inhabitants of Alaitoc follow means that this craftworld produces a greater proportion of scouts than any other.

The sword symbol of Alaitoc represents the Sword of Vaul, the weapon forged in the Smith God's desperate battle against Khaine the God of War. It represents the defiance and determination of its people, a sign that no matter how hard the fight the Eldar will never abandon it. Alaitoc is associated with the colour blue, or with the mixture of blue and yellow. However, the Pathfinders and Rangers who accompany the forces of the craftworld to war wear camouflaged coats that blend into their background.