(20 ILCS 1815/1) (from Ch. 129, par. 229)
    Sec. 1. For the purposes of this Act: "battalion," "company" or "squadron" means a battalion or company of infantry, or a squadron of the air force, of the Illinois State Guard, as the case may be;
    "active service" and "active duty" mean services performed under the command of superior officers pursuant to an order of the Governor;
    "officer" means any commissioned officer of the Illinois State Guard;
    "warrant officer" means a band leader, whose rank is between that of a master sergeant and a second lieutenant of Infantry;
    "enlisted man" means any member of the Illinois State Guard other than an officer or warrant officer;
    "military service" used herein as a qualification for appointment of officers in the Illinois State Guard, or calculation of their active duty longevity pay, means military or naval service rendered in the organized militia, including National Guard of the United States or the National Guard or Naval Militia of any State, and in the Army of the United States, Officers' Reserve Corps, Navy, Marine Corps, or Coast Guard, or any reserves thereof.
(Source: Laws 1951, p. 1999.)