presents fundamental principles that guide the employment of U. S. military forces in coordinated and integrated action toward a common objective. It represents what is taught, believed, and advocated as what is right (i. e., what works best).

Joint Doctrine.

Explanation:

The Joint Doctrine contains fundamental principles that serves as a guide to the employment of US armed and military forces and endorses a coordinated and integrated action towards a common objective such as planning, training, tactics, techniques and conducting military operations.One of the important purpose of Joint Doctrine is to increase operational effectiveness of U.S. armed forces.  It represents what is taught, believed, and advocated as to what is right.