Guard duty is a fundamental task performed by all Soldiers and leaders in order to protect the force. Simple and effective procedures that are known, understood and practiced by all personnel are vital to the execution of guard duty. This manual outlines the procedures that are requisite in the performance of guard duty. "Guard Duty" (TC 3-22.6/FM22-6) provides all Soldiers the doctrinal basis for the detailing, and performance of guard duty. For the purpose of this publication, the term guardhouse refers to any building or area in which the guard will be housed when not physically at a guard post. This manual is for personnel concerned with the organization and functions of interior and exterior guard. It includes orders, countersigns, parole words, and the responsibility of the main guard including duties of personnel and the formal method of mounting the guard. The manual also discusses the duties and composition of special guards.