Eagle Gate

The Eagle Gate is one of the five great fortresses that bar the mountain passes between the Shadowlands of Nagarythe and the Inner Kingdoms. It was built during the reign of Caledor the Conqueror, who was determined that the Dark Elves would never again find Ulthuan so unprepared and vulnerable as they had in the first days of his rule. As with the other fortresses, the garrison of the Eagle Gate is a permanent body of standing troops drawn from the finest warriors across Ulthuan.

To perform such service is one of the highest honours to which an Elf can aspire, and should a soldier survive his duty, he will thereafter be treated with respect by commoner and noble alike. Alas, surviving such an assignment is a luxury given to only a few. Between the Dark Elves of Naggaroth and the monsters of the Annulii, a soldier will have to best many foes if he is to return home.

Source

 * Warhammer: Uniforms & Heraldry of the High Elves -- pg. 34