The Collaborative International Dictionary of English v.0.48:

Soldiery \Sol"dier*y\, n.
   1. A body of soldiers; soldiers, collectivelly; the military.
      [1913 Webster]

            A camp of faithful soldiery.          --Milton.
      [1913 Webster]

   2. Military service. [Obs.] --Sir P. Sidney.
      [1913 Webster]

WordNet (r) 3.0 (2006):

soldiery
    n 1: soldiers collectively [syn: military personnel,
         soldiery, troops]