Kriegsspiel n. : A game of war, played for practice, on maps.

Example:
Is it possible to get a Kriegsspiel set and/or rulebook anywhere?

Taxonomy
game, battle, wargames, Maps, training game, Equipment, Hemel Hempstead, PBEM, divisional level, Bill Leeson, American Civil War, TEWT, imaginary, Fenian, invasion, history, Madder, briefings.

Defination from the web:
Kriegsspiel, the original military training game devised by Georg von Reisswitz and adopted by the Prussian Army, and other wargames based upon its principles such as Free Kriegsspiels, which are umpire ...