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Combat Logistics Battalion 1

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Combat Logistics Battalion 1 is a United States Marine Corps logistics unit that provides expeditionary transportation, maintenance, supply, and related support to Marine combat formations.

Last updated August 26, 2026

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Overview

Combat Logistics Battalion 1, commonly abbreviated CLB-1, is a logistics battalion of the United States Marine Corps. It belongs to Combat Logistics Regiment 1 within the 1st Marine Logistics Group and is based at Marine Corps Base Camp Pendleton in California. Unlike a commercial brand, CLB-1 is a military organization whose role is to deliver operational logistics in support of Marine units. The battalion's stated mission is to provide logistics support to Regimental Combat Team 1 beyond the capabilities available within that regiment's own organic structure. Its purpose is to enable the supported combat formation to continue operating in any environment and across the spectrum of conflict without being forced to pause because of logistical limitations. This makes the unit a deployable support formation rather than a fixed supply or warehousing organization. CLB-1's known subordinate elements include Headquarters & Service Company and Transportation Services Company. These components support the battalion's command, administration, communications, transportation, and field-logistics functions. In operational settings, the battalion can support the movement of supplies and equipment, vehicle and equipment sustainment, route and mobility work, and distribution activities serving units operating away from established bases. A documented deployment took place from October 2009 through May 2010 in Afghanistan in support of Operation Enduring Freedom. During that deployment, CLB-1 provided tactical logistics support to Regimental Combat Team 7, including during Operation Moshtarak in February 2010. The operation involved fighting to secure Marjah, a former Taliban stronghold in Helmand Province. The battalion's responsibilities included moving supplies to ground units through combat logistics patrols, air delivery, and helicopter support teams. It also worked to improve roads and trafficability for forces moving throughout the province and maintained vehicles and equipment exposed to severe dust, rocky terrain, and sustained operational use. CLB-1's identity is therefore defined by readiness, mobility, sustainment, and support to maneuver forces. Its activities are not marketed to consumers and it does not offer conventional products or commercial services. Publicly available information identifies its organizational relationships, mission, subordinate units, and at least one overseas deployment, but does not provide a complete chronology of the battalion's founding, all deployments, commanding officers, budget, or current operational assignments.

History

Combat Logistics Battalion 1 is a United States Marine Corps logistics battalion assigned to Combat Logistics Regiment 1 and the 1st Marine Logistics Group. Its base is Marine Corps Base Camp Pendleton, California. Public reference material does not establish a precise founding date or provide a complete institutional history, but it identifies the battalion as a deployable logistics formation supporting Marine combat forces. The unit's mission is to provide logistics support to Regimental Combat Team 1 beyond the regiment's organic capabilities. The intended result is to allow the supported regiment to keep operating independently and continuously, regardless of the environment or the stage of conflict, without operational pauses caused by logistics shortfalls. This mission places CLB-1 in the enabling structure behind maneuver forces: it supports the movement, sustainment, repair, and resupply functions needed for combat units to operate at distance from permanent bases. The battalion's listed subordinate elements are Headquarters & Service Company and Transportation Services Company. These companies reflect the unit's command and service infrastructure and its transportation role. In an expeditionary setting, such a structure can support the distribution of supplies, the movement of personnel and materiel, and the maintenance of vehicles and other equipment required by forward units. The clearest publicly documented episode in the available material is a deployment to Afghanistan from October 2009 through May 2010 in support of Operation Enduring Freedom. During that deployment, CLB-1 supported Regimental Combat Team 7 rather than the regiment named in its standing mission description. In February 2010, it provided tactical logistics support during Operation Moshtarak, a campaign centered on securing Marjah, a former Taliban stronghold in Helmand Province. The Afghanistan deployment illustrates the breadth of the battalion's field role. Its personnel transported supplies to ground units using combat logistics patrols, air delivery, and helicopter support teams. The battalion also contributed to improving roads and trafficability, helping units move through the province. In addition, it maintained vehicles and equipment operating in dusty, rocky terrain that imposed heavy wear and created persistent sustainment demands. These activities characterize CLB-1 as an operational support unit rather than a consumer-facing brand or conventional service business. Its value is measured in the continuity and reach of Marine operations: keeping combat formations supplied, mobile, and equipped in environments where ordinary transportation and maintenance arrangements may be disrupted. The available references do not document a full list of subsequent deployments, commanders, reassignments, awards, or organizational changes. Those areas require further primary-source research.

  • 2010

    Support to Operation Moshtarak

    [1]

    In February 2010, the battalion provided tactical logistics support to Regimental Combat Team 7 during operations to secure Marjah in Helmand Province.

  • 2010

    Afghanistan deployment concluded

    [1]

    The documented Afghanistan deployment concluded in May 2010 after the battalion supported transportation, mobility, air delivery, and equipment sustainment activities.

  • 2009

    Deployment to Afghanistan began

    [1]

    Combat Logistics Battalion 1 began a deployment to Afghanistan in October 2009 in support of Operation Enduring Freedom.

Products and positioning

An expeditionary Marine Corps logistics unit positioned to sustain combat formations, extend their independent operating capacity, and reduce operational pauses caused by supply, transportation, maintenance, or mobility constraints.

Marketing campaigns

  • 2010Operation Moshtarak

    Helmand Province, Afghanistan

    Combat Logistics Battalion 1 provided tactical logistics support to Regimental Combat Team 7 during the February 2010 operation to secure Marjah. Support included supply transportation, air delivery, helicopter support, road and trafficability work, and maintenance of heavily used vehicles and equipment.

    Outcome. The reference material documents CLB-1's logistics role but does not provide a separate assessment of the battalion's operational outcome.

Sources1 sources

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