DOD DICTIONARY OF MILITARY TERMS

The Department of Defense has updated and substantially expanded
its Dictionary of Military Terms.

The Dictionary is useful for students of military policy and also
provides some striking adaptations of ordinary language to
military needs.

"Space," picking an example at random, is defined as "A medium like
the land, sea, and air within which military activities shall be
conducted to achieve US national security objectives."

See "Department of Defense Dictionary of Military and Associated
Terms," Joint Publication 1-02, amended 31 August 2005 [746 pages,
2 MB PDF file]:

http://www.fas.org/irp/doddir/dod/jp1_02.pdf