U.S. Army

HHC, US Army Records Center, St. Louis, MO, served as the Headquarters and Headquarters Company responsible for the administration and operational support of the US Army’s main records repository. Established to manage, safeguard, and facilitate access to personnel and service records, the unit played a crucial role in supporting veterans, active-duty soldiers, and Army operations nationwide. Throughout its existence, HHC coordinated the processing and retrieval of millions of military records, ensuring the integrity and availability of vital documentation for benefits and historical research. Its work at the St. Louis center significantly contributed to the Army’s ability to maintain accurate personnel data and support the legacy of American service members.

Headquarters and Headquarters Company, 1st Battalion, 2nd Aviation Regiment (Attack), known as HHC, 1-2 AVN (ATK), traces its lineage to the activation of the 2nd Aviation Regiment in 1986. As part of the U.S. Army’s aviation branch, the battalion has been equipped with attack helicopters, such as the AH-64 Apache, and has played a critical role in providing aerial reconnaissance, close air support, and deep attack capabilities. Over the years, HHC, 1-2 AVN has supported numerous operations, including deployments to Iraq and Afghanistan, contributing to both combat and peacekeeping missions. The unit is recognized for its professionalism, adaptability, and commitment to mission success, upholding a proud tradition within Army aviation.

Headquarters and Headquarters Company (HHC), 143rd Signal Battalion has a distinguished history of supporting military communications. Originally constituted in the Florida Army National Guard, the 143rd Signal Battalion provided critical signal support to enhance command and control for various operations. Over the years, the battalion deployed personnel and equipment for both state and federal missions, including disaster response and overseas contingency operations. Through modernization and training, HHC, 143rd Signal Battalion has consistently ensured reliable and secure communications for supported units, reflecting its motto, "Linking the Force."

Headquarters and Headquarters Company (HHC), 2nd Brigade, 11th Air Assault Division, was activated at Fort Benning, Georgia in the early 1960s as part of the U.S. Army's pioneering effort to develop and test airmobile tactics. The unit played a crucial role in the Army's experimentation with helicopter-borne infantry operations, which would later revolutionize modern warfare. Through rigorous training and innovative exercises, HHC, 2nd Brigade helped validate concepts that became the foundation of air assault doctrine. In 1965, the 11th Air Assault Division was reflagged as the 1st Cavalry Division (Airmobile), and its personnel, including those from HHC, 2nd Brigade, deployed to Vietnam, where their air assault tactics proved decisive.

Headquarters and Headquarters Company (HHC), 3rd Battalion, 501st Aviation Regiment (Attack Battalion), known as 3-501st AHB, is a key aviation unit stationed at Fort Bliss, Texas. The battalion traces its lineage to the 501st Aviation Regiment, which has a distinguished history of providing attack and reconnaissance support to ground forces since its inception. Over the years, 3-501st AHB has deployed multiple times in support of Operations Iraqi Freedom and Enduring Freedom, earning a reputation for excellence in attack helicopter operations. Today, HHC, 3-501st AHB continues to provide critical command and control, logistical, and administrative support to the battalion, ensuring mission readiness and operational effectiveness for the unit’s Apache helicopter crews.

The Headquarters and Headquarters Company (HHC), 3rd Chemical Brigade, was originally constituted on 10 September 1942 in the Army of the United States as Headquarters and Headquarters Detachment, 3rd Chemical Battalion. The unit has served in various capacities, focusing on chemical, biological, radiological, and nuclear (CBRN) defense and training. Today, the 3rd Chemical Brigade is based at Fort Leonard Wood, Missouri, where it plays a critical role in training Soldiers in CBRN defense skills and readiness for the U.S. Army. Throughout its history, HHC, 3rd Chemical Brigade has maintained a reputation for excellence in supporting both peacetime training and operational readiness.

Headquarters and Headquarters Company, 4th Forward Support Battalion (Aviation), was stationed at Fort Lewis, Washington, as part of the 4th Brigade, 2nd Infantry Division (Stryker Brigade Combat Team). Established to provide logistical and sustainment support, HHC, 4th FSB (Avn) specialized in supporting aviation assets, including maintenance, supply, and medical services. During its tenure at Fort Lewis, the unit played a crucial role in preparing and deploying aviation support personnel and equipment for training exercises and overseas operations. The unit’s legacy is marked by its adaptability and commitment to mission success in both peacetime and combat environments.

Headquarters and Headquarters Company (HHC), 501st Combat Sustainment Group (CSG), has a distinguished record of service within the United States Army’s sustainment and logistics operations. Originally constituted to provide comprehensive command and control for subordinate sustainment units, the 501st CSG has supported numerous major operations, including deployments in support of Operation Iraqi Freedom and Operation Enduring Freedom. The unit specializes in coordinating supply, maintenance, and transportation functions, ensuring mission readiness for combat and support units. Through its adaptability and commitment to excellence, HHC, 501st CSG continues to play a vital role in sustaining Army operations worldwide.

**HHC, USMCA, Mannheim** (Headquarters and Headquarters Company, United States Military Community Activity, Mannheim) served as the primary administrative and command element supporting US Army personnel and their families stationed in Mannheim, Germany. Established during the Cold War era, the unit played a vital role in managing community services, security, and logistical support for American forces in the region. HHC, USMCA coordinated operations among various tenant units and helped maintain readiness for soldiers stationed at key installations such as Coleman and Spinelli Barracks. The unit continued its mission until the drawdown of US forces in Germany, culminating in the closure of Mannheim’s military installations in the mid-2010s.

**HHC & BAND, Camp Ross, South Korea** has a proud lineage as part of the United States Army's support elements stationed on the Korean Peninsula. Established during the post-Korean War era, the Headquarters and Headquarters Company (HHC) provided command, control, and administrative support to various units at Camp Ross, an important logistical hub near the DMZ. The unit’s Band played a vital role in fostering morale, participating in military ceremonies, and building community relations with both U.S. personnel and local Korean communities. Throughout its service, HHC & BAND contributed to the readiness and esprit de corps of U.S. forces in Korea, supporting peace and stability in the region until its eventual deactivation or realignment in line with broader force restructuring.

Headquarters and Headquarters Company, 3rd Battalion, 32nd Infantry Regiment, 7th Infantry Division (HHC 3/32nd Infantry, 7th Division) traces its lineage to the 32nd Infantry Regiment, originally constituted in 1916. The unit played significant roles in the Pacific Theater during World War II, participating in campaigns such as Leyte and Okinawa. Reactivated and reorganized during the Cold War era, it became part of the 7th Infantry Division, stationed at Fort Ord, California, and later participated in training and readiness missions, including deployments to Korea. The battalion and its HHC remained an essential element of U.S. Army infantry operations until inactivation during post-Cold War restructuring.

Headquarters and Headquarters Detachment, 13th Corps Support Battalion (HHD, 13th CSB), traces its origins to the Vietnam War era, providing vital logistical and support services to U.S. Army forces. Over the decades, the battalion has been stationed at various locations, including Fort Hood, Texas, supporting III Corps and deploying elements in support of major operations such as Operation Desert Storm and Operation Iraqi Freedom. The unit specializes in supply, maintenance, and transportation, ensuring combat readiness and sustainment for supported units. Through its dedicated service, HHD, 13th Corps Support Battalion, has earned commendations and played a crucial role in enabling the operational success of U.S. Army missions worldwide.

Headquarters and Headquarters Detachment, 187th Medical Battalion (HHD 187th Med Bn), was first constituted on 23 July 1942 in the Army of the United States and activated at Camp Barkeley, Texas, during World War II. The battalion provided medical support and training throughout several major conflicts, including the Korean and Vietnam Wars, adapting to the evolving needs of the Army's medical services. In recent decades, HHD 187th Med Bn has been stationed at Fort Sam Houston, Texas, where it plays a vital role in training and supporting Army medical personnel. The unit’s long-standing commitment to medical readiness and soldier care has earned it multiple commendations for excellence in service.

Headquarters and Headquarters Detachment, 194th Maintenance Battalion (HHD 194th Maint Bn) has a distinguished service history. The unit was originally constituted during World War II and has since supported numerous military operations. During the Korean War, the 194th Maintenance Battalion played a crucial role in maintaining and repairing vital equipment for U.S. and allied forces, ensuring operational readiness on the peninsula. Stationed in Korea, HHD 194th Maint Bn continues its mission today, providing essential maintenance support to sustain U.S. Army operations and strengthen the alliance with the Republic of Korea.

Headquarters and Headquarters Detachment, 2nd Chemical Battalion, traces its origins to its activation in 1917 during World War I as the 30th Engineer Regiment (Gas and Flame), which specialized in chemical warfare. The unit was reorganized and redesignated as the 2nd Chemical Battalion in 1940, serving with distinction in World War II, including campaigns in North Africa, Italy, and France. Throughout the Cold War and into the 21st century, the battalion has provided vital chemical, biological, radiological, and nuclear (CBRN) defense capabilities to the U.S. Army. Today, HHD, 2nd Chemical Battalion remains at the forefront of CBRN defense, supporting both domestic and overseas operations to safeguard troops and civilians from weapons of mass destruction.

The Headquarters and Headquarters Detachment, 38th Personnel Services Battalion (HHD, 38th PSB) was a key administrative unit within the United States Army. Activated in support of personnel operations, the 38th PSB provided critical human resources and personnel support functions for deploying and stationed soldiers across various theaters. Throughout its service, the battalion played a vital role in processing, accountability, and welfare services for Army units, particularly during major training exercises and deployments. The 38th PSB contributed significantly to the operational readiness and morale of the forces it supported until its eventual inactivation during Army restructuring and transformation efforts in the early 21st century.

Headquarters and Headquarters Detachment, 3D Support Battalion (HHD, 3D SB) was constituted to provide essential logistical and administrative support to combat and support units within its higher command structure. Activated as part of the United States Army’s ongoing transformation to modular support organizations, the battalion has participated in multiple training exercises and operational deployments, often supporting missions in the Indo-Pacific region. HHD, 3D SB specializes in supply, maintenance, transportation, and personnel services, ensuring operational readiness for its supported units. Throughout its history, the detachment and its parent battalion have earned recognition for their adaptability and commitment to mission success in both peacetime and contingency operations.

Headquarters and Headquarters Detachment, 5th Battalion, 73rd Armor (HHD 5/73rd Armor) traces its origins to the post-World War II era, as part of the U.S. Army’s efforts to expand and modernize its armored capabilities. Throughout its service, the unit provided critical command and support functions for armor operations, playing a key role in training, readiness, and logistical support. HHD 5/73rd Armor participated in various training exercises and deployments, contributing to the overall strength and effectiveness of its parent brigade. Over time, the unit underwent several reorganizations, reflecting the evolving needs of the Army’s armored forces.

The Headquarters and Headquarters Detachment, 68th Transportation Company (HHD 68TH TRANS) has a storied history supporting U.S. Army logistics and transportation missions. Activated during the Cold War era, the unit played a crucial role in the movement of personnel, supplies, and equipment across multiple theaters of operation. Over the decades, HHD 68TH TRANS has provided vital support during major conflicts, including Operation Desert Storm, Operation Iraqi Freedom, and Operation Enduring Freedom. The unit is recognized for its flexibility, professionalism, and unwavering commitment to sustaining Army readiness through superior transportation services.

Headquarters and Headquarters Detachment, 73rd Signal Battalion (HHD, 73rd Signal Battalion) was originally constituted on 3 December 1941 in the Regular Army as the 73rd Signal Company and activated at Fort Monmouth, New Jersey. The battalion has served through multiple periods of activation and inactivation, including key roles in World War II, the Cold War, and Operation Desert Storm, providing vital communications support to U.S. Army operations. Reactivated several times, the 73rd Signal Battalion has supported both European and stateside missions, enhancing command and control capabilities wherever deployed. Throughout its history, the unit has been recognized for its professionalism and adaptability in the rapidly evolving field of military communications.

The Headquarters and Headquarters Detachment, 9th Battalion, 9th Infantry Regiment (HHD 9/9th Infantry), traces its lineage to the storied 9th Infantry Regiment, originally constituted in 1855. Over its history, the regiment and its subordinate units, including HHD 9/9th Infantry, have served with distinction in major conflicts such as the Indian Wars, World War II, the Korean War, and the Vietnam War. During the Vietnam War, elements of the 9th Infantry Regiment, including the 9th Battalion, were actively engaged in combat operations, earning numerous unit citations and commendations for valor and effectiveness. Today, the legacy of HHD 9/9th Infantry is honored through the continued service and traditions of the 9th Infantry Regiment within the United States Army.

The Headquarters and Headquarters Detachment, 92nd Military Police Battalion (HHD, 92nd MP BN), is a distinguished unit within the United States Army Pacific (USARPAC). Originally constituted during World War II, the battalion has provided critical law enforcement, security, and support operations in various theaters, including deployments in Korea, Vietnam, and more recently in the Middle East. The 92nd MP BN has played a pivotal role in area security, detainee operations, and force protection, demonstrating adaptability in both combat and peacetime missions. Today, the unit continues to uphold its legacy of excellence, serving as a key component of USARPAC’s military police capabilities across the Indo-Pacific region.

HHD USMCA (GPN), or Headquarters and Headquarters Detachment, United States Military Customs Agency (Germany Processing Node), was activated to oversee and manage military customs operations within the European theater, primarily focusing on U.S. military personnel and equipment transiting through Germany. The unit plays a critical role in maintaining compliance with both U.S. and host nation customs regulations, ensuring secure and lawful movement of military assets. Over the years, HHD USMCA (GPN) has supported numerous major deployments and redeployments, adapting to changing mission requirements and international agreements. Its personnel are recognized for their expertise in customs enforcement, contributing to the security and operational effectiveness of U.S. forces in Europe.

**HHQ 1/143rd Infantry** serves as the Headquarters and Headquarters Company for the 1st Battalion, 143rd Infantry Regiment, a unit with a distinguished lineage within the U.S. Army National Guard. The regiment traces its origins to Texas, with roots dating back to the early 20th century, and has participated in major conflicts including World War II and the Global War on Terror. Reactivated in recent decades, HHQ 1/143rd Infantry provides essential command, control, and support for the battalion, ensuring operational readiness and mission success. The unit continues to uphold a tradition of excellence, supporting both federal mobilizations and state emergency responses.