U.S. Army, Pacific
USARPAC commands Army forces in the Asia-Pacific region, the largest area of responsibility in the Department of Defense, covering half the globe, including dozens of countries, from its headquarters at Fort Shafter.
Major USARPAC subordinate commands include 8th Army; I Corps; U.S. Army Alaska; U.S. Army Japan; 8th Theater Sustainment Command; 311th Signal Command (Theater); 94th Army Air and Missile Defense Command; 9th Mission Support Command; 18th Medical Command; 196th Infantry Brigade; 500th Military Intelligence Brigade; and 5th Battlefield Coordination Detachment.
Other units include U.S. Army Garrisons, Corp of Engineers, Alaska National Guard, Hawaii National Guard and Tripler Army Medical Center.
8th Theater Sustainment Command
The 8th Theater Sustainment Command is a complex organization of soldiers with sustainment responsibilities spanning the Pacific Command area of responsibility. Major subordinate commands include the 8th Special Troops Battalion, the 8th Military Police Brigade and the 130th Engineer Brigade.
The 8TSC enables readiness of assigned units, plans and synchronizes theater distribution and sustainment, protects the force and builds partner capacity in order to contribute to a stable and secure Indo-Asia Pacific Region.
311th Signal Command (Theater)
As the designated Signal command for the Army Service Component Commands within the Pacific and Korean theaters, the 311th Signal Command combines the strengths of more than 3,000 active-duty soldiers, U.S. Army Reserve soldiers and Army civilians to bring expertise, experience and commitment to meet the Army’s communications mission in the Pacific. Headquartered at Fort Shafter, Hawaii, the 311th SC and its subordinate units are stationed across 16 time zones, ranging from Alaska to Korea and from Hawaii to California.
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94th Army Air and Missile Defense Command
The 94th Army Air and Missile Defense Command provides Joint and Combined Theater Air and Missile Defense to meet OPLAN requirements through the assurance of allies and deterrence within the Asia-Pacific AOR. It serves as the first line of defense in the Pacific.
Initially constituted as the 94th Air Defense Artillery Dec. 16, 1940, the command has gone through many reorganizations and redesignations during its storied history. The current command was activated Oct. 16, 2005, at Fort Shafter under the USARPAC headquarters.
9th Mission Support Command
The 9th Mission Support Command is a U.S. Army Reserve Command with units serving in Honolulu, Hawaii; forts Richardson and Wainwright, Alaska; and Radio Barrigada, Guam. The 9th MSC is engaged throughout the Asia-Pacific realm, providing trained and ready forces to overseas contingency operations, playing a vital role in approximately 20 U.S. Army Pacific Theater Security Cooperation Program exercises, and providing key battle staff in support of Joint Task Force Homeland Defense.
The 9th MSC Headquarters and assigned units contain a U.S. Army Hospital and provide a ready force of engineers, military police, infantry, civil affairs and public affairs, as well as the mariners who operate the Logistical Support Vessel SSGT Robert T. Kuroda.
18th Medical Command (Deployment Support)
The 18th Medical Command (Deployment Support), known as MEDCOM (DS), is the premier expeditionary medical theater enabling command, ensuring seamless health service support throughout the Indo-Asia Pacific Region. It provides mission command, administrative assistance and technical supervision of assigned and attached medical units within the Indo-Asia Pacific Region. The 18th MEDCOM (DS) also coordinates and executes all medical Theater Security Cooperation Program projects with appropriate specialists and expertise, helping to build defense relationships; partners and trains with host nation and multinational medical units; and cultivates medical professional contacts with host nation partners.
196th Infantry Brigade
The 196th Infantry Brigade (Training Support Brigade) is a multicomponent organization and Major Subordinate Command within USARPAC. Soldiers provide professional, high-quality and responsive training support to Reserve component units throughout USARPAC by planning, resourcing and executing pre- and post-mobilization training for all Army National Guard and U.S. Army Reserve units assigned throughout Hawaii, Alaska, Guam, Saipan, American Samoa and Arizona. The brigade also provides training readiness oversight for three civil support teams (93rd CST, 94th CST and 103rd CST) in Hawaii, Guam and Alaska.
U.S. Army Corps of Engineers Pacific Ocean Division
The Pacific Ocean Division is the engineering, design and construction agent for the Army and Air Force in Alaska, the Army in Hawaii and for all Department of Defense agencies in Japan, the Republic of Korea, and Kwajalein Atoll, Marshall Islands.
Most notably, the division contributes significantly to the peace and security in the Pacific region through the execution of multibillion-dollar construction programs for U.S. forces in Japan and the Republic of Korea.
Pacific Ocean Division also supports U.S. Pacific Command and U.S. Army Pacific’s Theater Security Cooperation strategies, the Humanitarian Assistance Program and Civil Military Emergency Preparedness with projects throughout the Asia-Pacific region.
The division’s workforce produces every type of construction in support of service members and their families, from barracks to high-rise family housing, from fitness centers to child care centers and from ship berths to aircraft runways and hangars.
In addition, POD has a civil works mission in Alaska and Hawaii. The division is responsible for executing federal water resources development programs in Alaska and Hawaii as well as in U.S.-controlled land in the Pacific.
Ancillary to these duties are environmental services that include studies and hazardous and toxic waste cleanup.
The POD has the largest AOR of the U.S. Army Corps of Engineers’ nine divisions. The division’s mission is executed through its four districts: Honolulu, Alaska, Japan and the Far East (Korea).
The Honolulu District, U.S. Army Corps of Engineers’ area of operations stretches across five time zones, the equator and the International Dateline. It covers an estimated 12 million square miles from the Hawaiian Islands to American Samoa, through Micronesia to Guam and the Commonwealth of the Northern Mariana Islands. The district accomplishes military missions, including military construction, real estate and environmental services for the Army and Air Force in Hawaii, for all DOD agencies in Kwajalein Atoll and for other defense agencies in its area of operations, as assigned.
The Honolulu District’s missions include federal water resource management and development or civil works; it focuses on navigation, flood reduction and shore protection in Hawaii, the U.S. territories of Guam and American Samoa, and the Commonwealth of the Northern Mariana Islands. The district has regulatory jurisdiction governing work in waters and wetlands of the U.S. within its area of operations.
Headquarters, U.S. Army Installation Management Command, Pacific
The Army activated the Installation Management Command Oct. 24, 2006, to consolidate and strengthen installation support services to soldiers, civilians and their families. The Pacific Region, headquartered at Fort Shafter, has garrison installations in Hawaii, Alaska, Japan, Korea and Kwajalein.
IMCOM-Pacific replaces the former agency and marks the next step in the evolution of Army installation management.
IMCOM evolved out of the Installation Management Agency, established in 2002 to reduce bureaucracy and apply a uniform business structure to manage U.S. Army installations worldwide. IMCOM continues to oversee such facets of installation management as construction, family care, food management, environmental programs, well-being, public works and installation funding.
IMCOM presently has more than 100 installations in four regions: two regions in the continental United States, one region in Europe and one in the Pacific.
IMCOM oversees a standardization process that provides soldiers, civilians and families a consistent quality of services at all installations. It also streamlines how installations receive money and ensures that installation funds are used for installation services.
By assuming installation management duties, IMCOM relieves warfighters and mission commanders of garrison tasks so they can focus on training and missions.
The full authority of command is vital to effectively direct the vast resources necessary to support troop deployments while meeting the needs of their families. Consolidating the installation management structure under IMCOM optimizes resources, protects the environment and enhances the well-being of the Army community.
IMCOM provides fast, efficient and agile support to commanders in the performance of their tactical and strategic missions.
The Installation Management Command is headquartered on Fort Sam Houston, Texas.