 The first example is "Battle of Booby's Bluffs", originally published in 1921 by an Army officer under the pseudonym Major Single List.It is important for its "lessons-learned" examination of the new weapons introduced in the Great War (most notably tanks, machine guns and aero planes) and how these innovations required learning new combined arms tactics.In the style of "Duffer's Drift", a hapless battalion commander faces a battle scenario in a series of six dreams.