Activation refers to the temporary expansion of the Active Component (AC) forces by both voluntary and involuntary means. Activations are frequently used to support contingencies, exercises or deployments associated with war efforts or domestic emergencies. It’s important to understand the different types of activation as it influences entitlements associated with each deployment. Table 10.1 Activation Authorities in the IR Guide reflects the different types of activations, their authorities and limitations associated with each.
Mobilization involves the assembly, organization, and application of the nation’s resources for national defense and encompasses all activities necessary to prepare systematically and selectively for war. It is a non-voluntary “call-up” of personnel. NOTE: PIRR are mobilized only after partial, full, or total mobilization under Title 10, U.S.C., Sections 12301(a), 12302, or 12306 are invoked. The mobilization process of the PIRR is under the responsibility of ARPC and the Directorate of Personnel Actions (DPA) Division.