The Elwynn Brigade of the Stormwind Army is comprised of the armsmen provided by the lords of Elwynn Forest. The duchies of Westridge, Goldshire, and Northshire Valley provide the most troops of the estates of Elwynn, with the County of Eastvale also providing a sizable number of soldiers. Thusly, the largest regiments that comprise the Elwynn Brigade have been colloquially named after those estates.
From the Stormwind Army Field Manual:
ELWYNN BRIGADE GROUP
- 1st Rgmt, Westridge Duchy Reserve
- 3rd Rgmt, Goldshire Duchy Reserve
- 5th Rgmt, Northshire Duchy Reserve
- 16th Rgmt, Eastvale County Reserve