This achievement is gained upon completing all the raids in the Veil of Alaris.
Conquerer of Argath, Bastion of Illdaera
Conquerer of Valley of Lunanyn
Conquerer of Sarith, City of Tides
Conquerer of Rubak Oseka, Temple of the Sea
Conquerer of Beasts' Domain
Conquerer of Resplendent Temple
Conquerer of Pillars of Alra
Conquerer of Windsong Sanctuary
Conquerer of Erillion, City of Bronze
Conquerer of Sepulcher of Order