The Operational level of war

"Combat Studies Institute developed this historical bibliography in response to a growing interest by the Army in the operational level of war -- the planning, conducting, and sustaining of larger units to obtain strategic goals within a theater. The line between the tactical and operational levels of war is blurred at the corps and division levels. Therefore, some of the works included here may seem to deal more directly with tactical considerations than operational concerns. The history of the operational level of war as a distinct subject for study can be traced as far into the past as the Grand Tactics of the Napoleonic era. English, French, Russian and German histories has been included. Some references are annotated."
"Combat Studies Institute developed this historical bibliography in response to a growing interest by the Army in the operational level of war -- the planning, conducting, and sustaining of larger units to obtain strategic goals within a theater. The line between the tactical and operational levels of war is blurred at the corps and division levels. Therefore, some of the works included here may seem to deal more directly with tactical considerations than operational concerns. The history of the operational level of war as a distinct subject for study can be traced as far into the past as the Grand Tactics of the Napoleonic era. English, French, Russian and German histories has been included. Some references are annotated."@en