1-13. Third, doctrine provides the force with a common frame of reference and a common cultural perspective for solving military problems. By providing a common and standardized set of principles, tactics, techniques, procedures, and terms and symbols for the Army, doctrine enables flexibility, supports rapid action and reaction to emerging opportunities and threats, and facilitates swift adaptation during changing circumstances. Commanders and staffs focus their creative efforts on solving the unique problems of assigned missions without having to publish detailed procedures for completing common tasks for every mission. For example, if Soldiers understand that a change in the main effort means that all or most priorities—such as fire support, sustainment support, and so on—also change, then a commander does not have to specify every detail. The commander can assume that subordinate staffs and commanders will act based on a common approach to operations. A common approach enables units to self-synchronize both within the unit and between units. Perhaps the most important example of this common cultural perspective is the mission command approach. If leaders and Soldiers understand and exercise mission command to conduct operations, then commanders can expect subordinates to exercise initiative, and subordinates can expect mission orders, not detailed instructions. As a result, commanders count on more rapid decision making and more flexible adaptation to circumstances than if doctrine requires approval for every change in orders.