From ancient to modern times, the ways to defeat enemies, how differed according to times, places and people. However, it is a constant condition for the tactic of the duty disposition not be bound by traditional ideals and inherent forms .We must grasp the trend of recent events and elastically perform the principles. We cannot follow conservative traditions and stick to established rules inflexibly.Duty disposition is a distinctive art which can be understood which cannot easily be described. It is not general events but can be accomplished by means of more participating and more try. From ancient times to now, many great soldiers established military strategy and tactics. The most important thing is not to be restricted by traditional ideals and inherent forms, avoiding old-fashioned thought in order to set up their own ideas and actions independently.