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U.S. Army Reserve - Mobilization

  • Presidential Reserve Call-up (PRC) The President has the authority to involuntarily augment the active forces by a call-up of up to 200,000 members of the selected reserve for a period up to 270 days to meet mission requirements within the continental United States (CONUS) or overseas. The President must notify Congress within 24 hours and state the reason for his action.
  • Partial Mobilization The President has the authority to mobilize no more than 1,000,000 reservists (units and individuals from all services), for 24 months or less, and the resources needed for their support to meet the requirements of war or other national emergency involving an external threat to national security.
  • Full Mobilization Congress must declare that a state of national emergency exists to call up all forces, including Army Reserve and Army National Guard units, Individual Ready Reserve, Standby Reserve and members of the Retired Reserve, and the resources required for their support. The duration is the length of the emergency plus six months.
  • Total Mobilization Once a state of national emergency exists, Congress can extend full mobilization by activating and organizing additional units beyond the currently approved force structure. Total mobilization brings the industrial base up to full capacity to provide the additional resources, equipment and production facilities needed to support the armed forces of the nation, as done in World War II. Total mobilization involves not only the AC and RC but the entire Militia of the United States. The Militia of the United States consists of the Organized Militia and the Unorganized Militia. The Organized Militia consists of the National Guard and the Naval Militia. The Unorganized Militia consists of every able-bodied male citizen or person wishing to be a citizen between the ages of 17 and 45 as well as female members of the National Guard. Exceptions to this are: The Vice President, Judicial & Executive officers of the United States, territories and Puerto Rico; postal employees/contractors; custom house agents; workers in armories, arsenals and naval shipyards; pilots on navigable waterways and mariners in the sea service of a citizen, or a merchant in, the United States





10 USC 12304

10 USC 12302

10 USC 12301(a)


(Includes 30K IRR)




(Units, IMAs, AGRs, Special Category IRR)

(Units, IMAs, AGRs, + IRR/ING)

(Units, IMAs, AGRs, IRR/ING, + Retirees, Standby Reserve)


270 DAYS



The Army Chief of Staff set a goal for the Reserve Components to achieve and sustain an 85 percent DMOSQ and Professional Development (PDE) qualification level by fiscal year 2005. Recent increases in funding have raised both DMOSQ and PDE qualification rates by several percentage points. The Army Reserve is projecting that DMOSQ rates will climb to 85 percent by FY 2005 and NCOES qualification rates will reach 85 percent by FY 2004 due to programmed increases to funding levels. The Army Reserve's readiness status continues to improve. As of April, 2001, 76 percent of units meet deployment standards, a 9 percent increase over the previous two years. The Force Support Package (FSP) units, those which scheduled for early mobilization, average 88 percent deployable readiness. The Army Reserve continues to achieve a high number of units rated deployable, despite having the lowest level of full-time support of any reserve component.

More than 84,000 Army Reserve soldiers mobilized and served in Operation Desert Storm. The Army Reserve continues to support Active Army exercises, operations, and training worldwide. Some of the major exercises and training events supported include: BRIGHT STAR, NEW HORIZONS, Operation JOINT GUARD, Operation JOINT FORGE, and many National Training Center/Joint Readiness Training Center rotations. Army Reservists have been deployed simultaneously to two troubled parts of the world, in Europe, for Operations JOINT FORGE (Bosnia) and JOINT GUARDIAN (Kosovo), and in Southeast Asia for Operation STABLISE (East Timor). Worldwide deployments are nothing new for the soldiers of the Army Reserve. Since 1995, more than 16,800 Army Reservists have participated in Operations JOINT ENDEAVOR, JOINT GUARD, and now Continued JOINT FORGE, either in Bosnia, or in support operations in neighboring countries, and in Operation JOINT GUARDIAN, in Kosovo.

The Army Reserve is the most utilized of all the reserve components in the Department of Defense today. It furnished 74 percent of the reserve component forces mobilized for Operations Joint Endeavor and Joint Guard in Bosnia, 35 percent of all reserve component forces participating in Operations Desert Shield and Desert Storm, and 68 percent of all forces mobilized for Operation Uphold Democracy in Haiti.

By the end of 2001 approximately 9,020 Army Reservists had been called up under the President's partial mobilization. Of these, 7,834 were Troop Program Unit Army Reservists from 273 units, and the remaining 1,186 were Individual Mobilization Augmentees and Individual Ready Reservists. Additionally, there were about 2,000 other Army Reservists supporting operations in an other-than-mobilized status.

The bulk of those called up were in support of Operation Noble Eagle, helping with the recovery from the attacks or engaged in the defense of our homeland. The missions being performed included: force protection and security at installations and facilities, intelligence and investigation support, training and training validation, headquarters augmentation, garrison support and legal support, communications, postal and personnel support, engineer support, historical documentation, logistics and transportation operations.

The Army Reserve also had units and soldiers in support of Operation Enduring Freedom. About 90 units and 2,300 citizen-soldiers were supporting this phase of the war. These mobilized forces included public affairs, military intelligence, civil affairs, medical and other combat support and combat service support specialties. The Reserve also continued to fill headquarters and agency-level requests for IRR and IMA soldiers to support current operations. There were more than 700 mobilized IMA soldiers supporting Operation Enduring Freedom.

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Page last modified: 05-07-2011 01:37:39 ZULU