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Idaho Army National Guard

The Idaho Army National Guard is Idaho's Army National Guard component and a reserve component of the United States Army.

Last updated August 24, 2026

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Overview

The Idaho Army National Guard is the Army component of the Idaho National Guard and operates in both state and federal capacities. Its soldiers belong simultaneously to the military structure of the State of Idaho and to the United States Army's reserve establishment. Under the dual-status system used by the National Guard, the organization can respond to state emergencies under the authority of the governor or be placed into federal service for national defense and overseas operations. The force is trained, equipped, and organized according to United States Army standards. Its personnel use Army ranks, insignia, occupational specialties, training systems, and awards, while also remaining eligible for Idaho state decorations recognizing service to the state and its communities. National coordination of the Army National Guard is conducted through the National Guard Bureau, which works with the Army and the states to maintain readiness, mobilization capability, and interoperability. Idaho's Army Guard provides a broad range of capabilities rather than a consumer-facing product portfolio. These include armored and mechanized maneuver forces, field artillery, combat engineering, logistics, medical support, military intelligence, communications, recruiting and retention, aviation, civil-support response, and regional military training. Its principal formations include the 116th Cavalry Brigade Combat Team, the 1st Battalion of the 148th Field Artillery Regiment, the 116th Brigade Engineer Battalion, the 145th Brigade Support Battalion, and aviation units based primarily at Gowen Field. The organization also operates or supports training and maintenance facilities, including the Orchard Combat Training Center and the 204th Regiment Regional Training Institute. The Idaho Army National Guard has participated in overseas military deployments, including operations in Afghanistan. At home, it has supported civil authorities during emergencies and public-health operations. During the COVID-19 pandemic, Idaho Guard personnel assisted with screening and testing activities and later supported the administration of nearly 100,000 vaccine doses. These activities illustrate the organization's two-part mission: maintaining deployable military forces while providing trained personnel and specialized capabilities for state emergencies and domestic support. The organization is not a commercial brand, does not sell conventional consumer products, and is not publicly listed. Its public identity is associated with military readiness, service to Idaho communities, national defense, disaster response, and the professional development of soldiers. Its current structure includes units and detachments distributed across Idaho, with some formations operating in coordination with National Guard units from neighboring states. The Idaho Army National Guard is therefore both a state military institution and an integrated component of the wider United States Army and National Guard system.

History

The Idaho Army National Guard developed from Idaho's state military tradition and is now organized within the modern United States National Guard system. The Militia Act of 1903 created the institutional framework that brought the various state militias into the present National Guard structure. That legislation established a closer relationship between state military forces and the federal Army, including common standards for organization, training, equipment, ranks, and mobilization. The Idaho Army National Guard subsequently became a reserve component with a dual legal and operational identity. In ordinary circumstances, its soldiers serve under state authority and can be directed by Idaho's governor for missions within the state. When federalized, the force becomes part of the United States Army and can be assigned to national military operations, including overseas deployments. This arrangement allows the state to maintain a trained military force while giving the federal government access to organized reserve combat and support units. The organization uses the Army's personnel system and military conventions. Soldiers hold standard United States Army ranks and wear Army insignia, and they may receive federal military awards. Idaho also maintains state-level recognition for service performed for or on behalf of the state. National Guard Bureau regulations and federal law provide the framework for coordination between Idaho and the national organization. A related institution was the Idaho State Guard, established to provide a state-controlled force when the Idaho National Guard was in federal service and therefore unavailable for local protection. The State Guard represents the legal and historical distinction between a state's emergency military capacity and its National Guard units operating under federal orders. It is separate from the Idaho Army National Guard and should not be treated as the same organization. In the contemporary period, Idaho Army National Guard capabilities have included armored and cavalry operations, artillery, combat engineering, sustainment, aviation, medical evacuation, communications, intelligence, civil-support response, recruiting, and professional military instruction. Gowen Field in Boise serves as a principal military location, while units and detachments are distributed throughout Idaho. The force also works within regional National Guard formations that include units from neighboring states, reflecting the interstate structure of many brigade-level formations. Idaho soldiers have served in overseas conflicts and deployments, including Afghanistan. At home, the force has supported state and local authorities during public emergencies. During the COVID-19 response, Guard personnel assisted with screening and testing during a major infection wave and later contributed to a vaccination effort involving nearly 100,000 doses. These missions demonstrate the continuing evolution of the organization from a traditional militia reserve into a force capable of combat deployment, specialized technical support, and large-scale domestic assistance. As of the structure described in the reference material, the Idaho Army National Guard includes Joint Force Headquarters' Army element, recruiting and retention, medical and civil-support units, the 25th Army Band, maintenance and training facilities, the 116th Cavalry Brigade Combat Team, the 1st Battalion of the 148th Field Artillery Regiment, the 116th Brigade Engineer Battalion, the 145th Brigade Support Battalion, state aviation formations, and the 204th Regiment Regional Training Institute. Its organization may change as force-structure decisions, federal reorganizations, and state requirements evolve.

  • 2020

    COVID-19 screening and testing support

    [1]

    Idaho Guard personnel assisted public-health authorities with coronavirus screening and testing during a late-2020 infection wave.

  • 1903

    Militia Act establishes the modern National Guard framework

    [1]

    The Militia Act of 1903 organized state militias into the modern National Guard system, providing the institutional basis for Idaho's Army Guard as a state and federal reserve force.

  • Idaho State Guard created for periods of federal mobilization

    [1]

    The Idaho State Guard was created as a separate state force to help protect Idaho when the Idaho National Guard was serving in federal status and unavailable for state missions.

  • Idaho units deploy to Afghanistan

    [1]

    Members of the Idaho Army National Guard participated in United States military deployments to Afghanistan.

  • COVID-19 vaccination support

    [1]

    The Guard supported the administration of nearly 100,000 COVID-19 vaccine doses in Idaho.

Products and positioning

A dual-mission state and federal military organization focused on Army readiness, homeland and community support, and deployable combat and support capabilities.

  • Combat maneuver formation

    116th Cavalry Brigade Combat Team

    The 116th Cavalry Brigade Combat Team is the Idaho Army National Guard's principal brigade-level maneuver formation. Its structure includes the 2nd Battalion, 116th Cavalry Regiment, along with affiliated units from neighboring-state National Guards and supporting artillery, engineer, and sustainment formations. The brigade provides armored, cavalry, mechanized, and combined-arms capabilities for federal mobilization and regional readiness.

  • Field artillery

    1st Battalion, 148th Field Artillery Regiment

    Based principally in southeastern Idaho, the 1st Battalion, 148th Field Artillery Regiment provides field-artillery capability for the Idaho Army National Guard. Its headquarters and batteries are distributed among several Idaho communities, supporting brigade operations, training, and potential federal deployments.

  • Combat engineering and brigade support

    116th Brigade Engineer Battalion

    The 116th Brigade Engineer Battalion provides combat engineering, engineering support, signals, and military-intelligence functions within the brigade structure. Its companies and detachments operate from locations across Idaho and contribute to mobility, survivability, communications, and operational information capabilities.

  • Logistics and sustainment

    145th Brigade Support Battalion

    The 145th Brigade Support Battalion supplies distribution, maintenance, medical, and forward-support functions for Idaho's brigade formations. Its companies are located across Idaho, with some support elements aligned to units from Nevada, Oregon, and Montana in the wider regional brigade organization.

  • Army aviation

    1st Battalion, 183rd Aviation Regiment

    The 1st Battalion, 183rd Aviation Regiment is an assault aviation formation based at Gowen Field. Its listed capabilities include UH-60M Black Hawk helicopter companies, aviation maintenance, forward support, and associated command elements. The battalion is part of a broader regional combat aviation structure.

  • Military training facility

    Orchard Combat Training Center

    The Orchard Combat Training Center is an Idaho Army National Guard training installation supporting maneuver, weapons, field, and collective military training. It also hosts maintenance and equipment-support functions associated with Idaho's force-readiness mission.

  • Military education and training

    204th Regiment Regional Training Institute

    The 204th Regiment Regional Training Institute in Boise provides specialized Army instruction through armor, modular, maintenance, and ordnance training elements. It supports professional military education and technical preparation for National Guard personnel.

Marketing campaigns

  • 2020COVID-19 testing and vaccination support

    Idaho

    The Idaho National Guard assisted with coronavirus screening and testing during a late-2020 infection wave and later helped administer nearly 100,000 vaccine doses.

    Outcome. The Guard contributed personnel and operational capacity to Idaho's public-health response; the available reference does not provide a complete assessment of the program.

  • Afghanistan deployments

    Afghanistan · United States

    Idaho Army National Guard soldiers have deployed to Afghanistan as part of United States military operations. The deployments reflected the Guard's federal mission and its integration into Army expeditionary forces.

    Outcome. The reference material confirms participation but does not provide a specific unit list, deployment dates, or operational outcome.

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