The 311th Expeditionary Sustainment Command is a United States Army Reserve logistics headquarters subordinate to the 79th Theater Sustainment Command. Headquartered at 1250 Federal Avenue in Los Angeles, the command oversees about sixty two subordinate units and more than six thousand one hundred soldiers across Arizona, California, and Nevada.[1]
The headquarters traces its origin to the post World War II period, when the Army chose Los Angeles as the site for a new logistics unit to leverage a large pool of qualified Army Reserve personnel. The unit was activated in 1950 as the 311th Logistical Command. It was redesignated the 311th Support Brigade in 1974 and the 311th Corps Support Command in 1979. In 1981 it became the major support headquarters for I Corps. In 2005, as part of the Army modular transformation, it received its current designation as the 311th Expeditionary Sustainment Command.[2]
The command has supported named operations including Operation Desert Shield and Operation Desert Storm, and Joint Endeavor in the Balkans. With I Corps, it participated in exercises such as Bold Venture, Cascade Peak, Team Spirit, Yama Sakura, and Border Start.[2]
Elements of the command also served in Afghanistan, including duty associated with theater sustainment at Kandahar Airfield during the early twenty tens.[6]
The 311th commands and controls sustainment units to provide operational and tactical level support, including distribution management, in coordination with a theater sustainment command. On order, it can deploy globally to conduct combat service support operations.[1]
Lineage
1950: Activated in the Army Reserve as the 311th Logistical Command in Los Angeles.[9]
1974: Redesignated as the 311th Support Brigade.[9]
1979: Redesignated as the 311th Corps Support Command (COSCOM).[9]
1981: Became the major support headquarters for I Corps.[9]
Soldiers of the 311th Expeditionary Sustainment Command during 2019 annual training
The 311th Expeditionary Sustainment Command is a subordinate unit of the 79th Theater Sustainment Command. As of January 2026 the command consists of the following units:[13]
Headquarters and Headquarters Company, 653rd Regional Support Group, in Mesa (AZ)[17]
336th Combat Sustainment Support Battalion, in Buckeye (AZ)[17]
Headquarters and Headquarters Company, 336th Combat Sustainment Support Battalion, in Buckeye (AZ)[17]
348th Transportation Medium Truck Company (POL, 5K GAL) (EAB Linehaul), in Buckeye (AZ)[17]
452nd Quartermaster Company (Field Service) (Modular), in Scottsdale (AZ)[17]
974th Transportation Detachment (Movement Control Team), in Buckeye (AZ)[17]
418th Quartermaster Battalion (Petroleum Support), in Red Rock (AZ)[17]
Headquarters and Headquarters Detachment, 418th Quartermaster Battalion (Petroleum Support), in Red Rock (AZ)[17]
208th Transportation Medium Truck Company (PLS) (EAB Tactical), in Red Rock (AZ)[17]
331st Transportation Detachment (Movement Control Team), in Red Rock (AZ)[17]
655th Quartermaster Detachment (Petroleum Liaison Team), in Red Rock (AZ)[17]
419th Combat Sustainment Support Battalion, in Tustin (CA)[16]
Headquarters and Headquarters Company, 419th Combat Sustainment Support Battalion, in Tustin (CA)[16]
163rd Ordnance Company (Ammo) (Modular), in Tustin (CA)[16]
340th Transportation Detachment (Movement Control Team), at Camp Pendleton (CA)[16]
478th Transportation Medium Truck Company (PLS) (EAB Tactical), at Camp Pendleton (CA)[16]
968th Quartermaster Company (Water Purification and Distribution), in Tustin (CA)[16]
1017th Quartermaster Company (Petroleum Support), at Camp Pendleton (CA)[16]
Abbreviations: PLS — Palletized Load System; HET — Heavy Equipment Transporter; POL — Petroleum Oil Lubricants; EAB — Echelon Above Brigade
Insignia
Shoulder sleeve insignia, 311th ESCDistinctive unit insignia, 311th ESC
The shoulder sleeve insignia (SSI) for the 311th was originally approved for the 311th Logistical Command on 22 March 1955. It was redesignated for the 311th Support Brigade on 19 December 1974; for the 311th Corps Support Command on 16 May 1979; and for the 311th Expeditionary Sustainment Command on 17 March 2006.[19]
The insignia consists of three interlaced arrows which symbolize the unit’s mission to provide support in the fields of transportation, quartering, and supply. The arrows also represent strength through unity and the broad logistical functions of the command.[2]
The distinctive unit insignia (DUI) was originally approved for the 311th Support Brigade on 4 November 1970. It was redesignated for the 311th Corps Support Command on 16 May 1979, and again redesignated for the 311th Expeditionary Sustainment Command on 17 March 2006.[20]
The design incorporates a chevron, wrench, and wings which together symbolize the command’s motto: "Provide, Maintain, Sustain." The chevron stands for support, the wrench for maintenance, and the wings represent Los Angeles — the "City of Angels" — where the command is headquartered. Scarlet and buff are the branch colors of the sustainment and logistics corps.[20]
Command team
As of 2025 the commanding general is Brigadier General Earl C. "Chip" Sparks IV and the command sergeant major is Command Sergeant Major Kristy L. Hawkins.[21] Former commanders include Brigadier General Dianne Del Rosso and Brigadier General John M. Dreska, who conducted a change of command on 11 April 2021 in Los Angeles.[7]
Recent activities
The command continues to support theater sustainment tasks and large scale training. In 2025 it participated in Operation Mojave Falcon events at Fort Hunter Liggett and conducted a G8 Road to Budget circulation across the formation.[22][23]
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