Soldiery, n.
1. A body of soldiers; soldiers, collectivelly; the military. A camp of faithful soldiery. Milton.
2. Military service. [Obs.] Sir P. Sidney.
Shades of meaning
Fernald has no entry of its own for soldiery; he lists it under army.
Where he writes about it:
Military is a general word for land-forces; the military may include all the armed soldiery of a nation, or the term may be applied to any small detached company, as at a fort, in distinction from civilians. — from army