Definitions of military:

• noun:   the military forces of a nation

  Example: "Their military is the largest in the region"

• adjective:   associated with or performed by armed services as contrasted with civilians

  Example: "Military police"

• adjective:   characteristic of or associated with soldiers or the military

  Example: "Military uniforms"

• adjective:   of or relating to the study of the principles of warfare

  Example: "Military law"