I have over time tried to calculate the military forces available to the various realms of Hârn and Lýthia. These provide estimates of both the 'war-muster' levels, as well as more 'ordinary' muster levels.
Eastern Hârnic Forces
Calculations of the forces of Kàldôr (~6,000), Mèlderýn (~7,100), Chybísa (~1,000), Orbáal (~2,300), Ázadmêre (~2,200), Eváel (~2,100), and others:
* Eastern Hârnic Forces v2 (PDF) ; Eastern Hârnic Forces v2 (XLS)
Western Hârnic Forces
Calculations of the forces of Réthem (~4,800), Kandáy (~5,000), and Thârda (~6,800):
* Western Hârnic Forces v2 (PDF); Western Hârnic Forces v2 (XLS)