Jan Fischer, American Soldier In His Military Life

The last requirement of the military is for military performance assessment and learning from it. These two functions are performed by military historians and military theorists who seek to identify failures and success of the armed force and integrate corrections into the military reform with the aim of producing an improved force capable of performing adequately should there be a national defence policy review.
Military in combat
The primary reason for the existence of the military is to engage in combat, should it be required to do so by the national defense policy, and to win. This represents an organizational goal of any military, and the primary focus for military thought through military history.