A Gurë legion is comprised of maugs and warforged. They are built by the warforged settlements dotting the Great Expanse. The largest buyers of these units are the halfling states of the Seven Vales.
Vorangrith merchants, and others, obtain Gurë legions for defense, mercenary work, and selling them to foreign powers. During the Cinazan Front, they were supplied to the Khazarkar Empire in great numbers.
Gurë legions are assigned numbers for the year and month formed, such that a unit formed in the tenth month of 1400 would be designated 10-1400. The creation of a Gurë legion is expensive and requires a lot of training so two in one month would be very unusual, though if it did happen, they would be numbered 1st 10-1400, 2nd 10-1400, and so on.