U.S. Army

The 588th Engineer Battalion was first constituted on 25 February 1943 in the Army of the United States and activated on 25 March 1943 at Camp Claiborne, Louisiana. During World War II, the battalion served in the European Theater, participating in campaigns such as Normandy, Northern France, Rhineland, and Central Europe, providing essential engineering support including bridge construction and mine clearance. The unit has since served in a variety of roles during subsequent conflicts, including Vietnam, where it was instrumental in building and maintaining critical infrastructure. Today, the 588th Engineer Battalion continues its legacy as part of the U.S. Army, specializing in combat engineering and support operations.

The 1st Battalion, 45th Combat Engineers was originally constituted during World War II, supporting Allied advances across Europe with critical engineering tasks such as bridge construction, mine clearing, and fortification building. After the war, the unit was reorganized and continued to serve through the Cold War, adapting to new technologies and doctrines. During the Global War on Terror, the 1/45th Combat Engineers deployed to Iraq and Afghanistan, providing essential route clearance and infrastructure support under hazardous conditions. Known for their expertise and resilience, the battalion remains a key force in enabling mobility and survivability for U.S. Army operations worldwide.

The 1st Tank Battalion, activated on 1 November 1941, is a storied armored unit of the United States Marine Corps. The battalion distinguished itself during World War II, notably in battles such as Guadalcanal, Tarawa, Saipan, and Iwo Jima, providing critical armored support to Marine infantry. Throughout the Korean War, the battalion played a vital role in major engagements, including the Battle of Inchon and the Chosin Reservoir campaign. In more recent history, 1st Tank Battalion participated in Operations Desert Storm, Iraqi Freedom, and Enduring Freedom, upholding its legacy as a formidable armored force before its deactivation in 2021.

The 1st Squadron, 3rd Armored Cavalry Regiment (1-3 ACR), stationed at Fort Carson, Colorado, is a storied unit in the U.S. Army's armored cavalry tradition. Originally constituted in 1846, the 3rd Cavalry Regiment has participated in major conflicts, including the Indian Wars, World Wars I and II, Operation Desert Storm, and the Global War on Terrorism. The 1st Squadron, known as the "Tiger Squadron," has served as a reconnaissance and security force, leveraging armored vehicles and cavalry tactics. During its time at Fort Carson, 1-3 ACR trained rigorously and deployed multiple times in support of operations in Iraq and Afghanistan, upholding the regiment's motto, "Brave Rifles."

The 3rd Army is a designation used by several nations, most notably the United States and the former Soviet Union. The United States Army's Third Army was activated during World War I and gained fame under the command of General George S. Patton in World War II, playing a crucial role in the breakout from Normandy, the liberation of France, and the advance into Germany. The Soviet 3rd Army participated in major Eastern Front operations during World War II, including the Battle of Kursk and the advance into Eastern Europe. Both formations have left enduring legacies in military history through their significant contributions to Allied victories in the 20th century.

The Military Police (MP) is a specialized branch within armed forces worldwide, tasked with enforcing military laws, maintaining discipline, and ensuring security within military installations. The origins of military policing date back to ancient armies, but the role became more formalized during the Napoleonic Wars and the American Civil War, when dedicated units were established to oversee order among troops. Throughout the 20th century, especially during the World Wars, Military Police played vital roles in traffic control, prisoner of war management, and battlefield law enforcement. Today, MPs continue to serve both in combat zones and at home bases, providing crucial support in law enforcement, security operations, and humanitarian missions.

The 1st Signal Brigade was activated on April 1, 1966, in the Republic of Vietnam to provide comprehensive communications support to U.S. forces during the Vietnam War. Tasked with integrating and managing all Army signal units in the theater, the brigade played a critical role in establishing and maintaining secure and reliable communications networks across South Vietnam. After the war, the brigade was inactivated, but it was reactivated in South Korea in 1972, where it continues to provide vital communications and information systems support to U.S. Forces Korea and Eighth Army. Throughout its history, the 1st Signal Brigade has been recognized for its technical excellence, adaptability, and crucial contributions to military operations.

The 440th Signal Battalion was first constituted on 18 October 1942 in the Army of the United States and activated on 25 October 1942 at Camp Crowder, Missouri. During World War II, the battalion served in campaigns across Europe, providing vital communications support during the Rhineland and Central Europe campaigns. After World War II, the unit experienced periods of inactivation and reactivation, later becoming part of the U.S. Army’s forces in Europe during the Cold War, stationed in Germany. The 440th Signal Battalion continued its mission of delivering tactical and strategic communications until its inactivation in 2008.

The United States Army Reserve was officially established in 1908 to provide a federal reserve of medical officers for the U.S. Army. Over time, its mission expanded to include soldiers from many different specialties, supporting the active Army in times of need. Army Reserve units have been mobilized for every major conflict since World War I, including World War II, the Korean War, Vietnam, Desert Storm, and the Global War on Terrorism. Today, the US Army Reserve provides trained, equipped, and ready soldiers and units to support national defense and humanitarian missions both at home and abroad.

The United States Army, Vietnam (USARV) was established in 1966 as the Army component command of the United States Military Assistance Command, Vietnam (MACV). Its primary mission was to provide command and logistical support to all U.S. Army forces serving in the Republic of Vietnam during the Vietnam War. Headquartered at Long Binh, USARV managed combat operations, training, and supply lines, overseeing tens of thousands of soldiers at the peak of American involvement. The command was inactivated in March 1973 as U.S. forces withdrew, marking the end of major Army operations in Vietnam.

The 249th Engineer Battalion, known as the "Prime Power" battalion, was constituted on 15 May 1943 and activated on 1 June 1943 at Camp Bowie, Texas. During World War II, the unit participated in campaigns across the European Theater, providing vital engineering support and construction under combat conditions. Reactivated in 1994, the battalion specializes in electrical power generation and distribution, supporting both combat and humanitarian missions worldwide. Today, the 249th Engineer Battalion is a key asset of the U.S. Army Corps of Engineers, renowned for its expertise in restoring critical infrastructure during emergencies and contingencies.

Naval Medical Center San Diego (NMCSD), often referred to as "Balboa Hospital," traces its origins to 1917 when it was established to care for sailors during World War I. Located in Balboa Park, San Diego, the facility rapidly expanded to meet the growing medical needs of the U.S. Navy and Marine Corps, especially during World War II and subsequent conflicts. Over the decades, NMCSD has developed into one of the largest and most advanced military medical centers, providing comprehensive healthcare, training, and research. Today, it serves active duty personnel, veterans, and their families, maintaining a critical role in military readiness and humanitarian missions.

The 1st Battalion, 30th Infantry Regiment (1/30th Infantry), known as the "Battle Boars," was originally constituted in 1901 and has served with distinction in numerous conflicts. The unit fought valiantly in both World Wars, participating in major campaigns such as North Africa, Sicily, and the European Theater during WWII as part of the 3rd Infantry Division. During the Korean War, the 1/30th Infantry earned further honors for its actions in key battles, and later served in the Vietnam War and Operations Iraqi Freedom and Enduring Freedom in the 21st century. Renowned for its professionalism and courage, the 1/30th Infantry continues to uphold its legacy as a vital component of the U.S. Army.

The 1st Battalion, 15th Infantry Regiment (“1/15th Infantry”) is a distinguished unit of the United States Army with origins dating back to 1861. The regiment saw extensive service during the American Civil War and later fought with valor in the Spanish-American War, World War I, and World War II. In World War II, the 1/15th Infantry was part of the 3rd Infantry Division and participated in major campaigns including North Africa, Sicily, Italy, and France. The battalion also served with distinction in the Korean War, Vietnam War, and has been deployed in recent conflicts such as Operation Iraqi Freedom, upholding a legacy of courage and excellence.

The 1st Battalion, 39th Infantry Regiment (1-39 IN), known as the "Fighting Falcons," was first constituted in 1917 and has played a significant role in various U.S. military campaigns. The unit saw extensive combat in World War II with the 9th Infantry Division, participating in the North African, Sicilian, and European campaigns, including the Normandy invasion and the Battle of the Bulge. During the Vietnam War, the 1/39th Infantry was again activated and distinguished itself in numerous operations from 1966 to 1969, earning several unit commendations. In modern times, the battalion has served primarily as a training unit at Fort Jackson, South Carolina, preparing new soldiers for service in the U.S. Army.

The 1st Battalion, 44th Air Defense Artillery Regiment (1-44th ADA) traces its lineage to its constitution in 1917 as part of the Coast Artillery Corps. During World War II, the unit served in the Pacific Theater, participating in campaigns such as Leyte and Okinawa. Reactivated and re-designated multiple times throughout the Cold War, 1-44th ADA transitioned to air defense roles, employing systems such as the HAWK and later the Patriot missile systems. In recent decades, the battalion has deployed in support of operations in the Middle East, providing critical air and missile defense for U.S. and allied forces.

The 1st Battalion, 14th Infantry Regiment (1/14th Infantry), known as the “Golden Dragons,” has a distinguished history dating back to its formation in 1861. The unit served with valor in the American Civil War and participated in numerous campaigns during the Indian Wars, the Philippine-American War, and World War II. During the Vietnam War, the 1/14th Infantry earned multiple commendations for its actions in major operations. In more recent decades, the battalion has deployed in support of peacekeeping missions, Operation Iraqi Freedom, and Operation Enduring Freedom, continuing its legacy of service as part of the U.S. Army’s 25th Infantry Division.

The **1st Army** is a designation used by several nations, most notably by the United States, Germany, France, and Russia, often as a primary field army in major conflicts. In the United States, the First Army was established in 1918 during World War I under General John J. Pershing and played a crucial role in the St. Mihiel and Meuse-Argonne offensives. Re-activated for World War II, the US First Army, under General Omar Bradley, led the assault on Omaha and Utah beaches during the D-Day landings and pushed through France and into Germany. In subsequent decades, the First Army's mission shifted to training and preparing reserve and National Guard units, continuing its legacy as a key component of national defense.

Fort Sill, located in southwest Oklahoma, was established in 1869 during the Indian Wars to protect settlers and serve as a base for military campaigns against the Southern Plains tribes. Named after Brigadier General Joshua W. Sill, the fort played a pivotal role in the settlement of the American West and later became home to legendary figures like Geronimo and Buffalo Soldier regiments. In the 20th century, Fort Sill evolved into the premier training center for the U.S. Army’s Field Artillery branch, earning the moniker "Home of the Field Artillery." Today, it continues to serve as a vital training and operational hub, supporting both Field Artillery and Air Defense Artillery missions for the U.S. Army.

The 143rd Signal Battalion was a communications unit of the United States Army, originally constituted during World War II. Activated in 1942, it provided critical signal support for command and control, ensuring reliable communications across various theaters of operation. The battalion was later assigned to the 3rd Infantry Division, where it played a vital role in both European campaigns and later Cold War missions. Following decades of service, the 143rd Signal Battalion was inactivated in 2004 as part of Army transformation efforts, with its legacy carried on by successor signal units.

The 3rd Armored Cavalry Regiment (3rd ACR), known as the "Brave Rifles," was first constituted in 1846 and has a distinguished history of service in the United States Army. The regiment fought in the Mexican-American War, participated in the Indian Wars, and served in both World Wars. During the Cold War, the 3rd ACR was stationed in Germany, conducting border patrols and providing armored reconnaissance. In the 21st century, the regiment deployed multiple times to Iraq and Afghanistan, playing key roles in reconnaissance and security operations.

The 1st Battalion, 46th Infantry Regiment (1/46th Infantry) was originally constituted in 1917 as part of the U.S. Army during World War I. The battalion is most renowned for its service as part of the 196th Light Infantry Brigade in the Vietnam War, where it participated in major operations such as Operation Wheeler/Wallowa and Operation Frederick Hill. Throughout its history, the 1/46th Infantry has earned a reputation for bravery and professionalism in combat, receiving several unit citations and commendations. Today, the unit continues its legacy as part of the U.S. Army's training mission, shaping new generations of infantry soldiers.

The 1st Battalion, 10th Field Artillery Regiment (1/10th FA) was first constituted in 1916 and organized at Camp Stewart, Texas. The unit saw distinguished service during World War I as part of the 3rd Division, notably earning its motto "The Rock's Support" for its role in the defense of the Marne. Throughout World War II, 1/10th FA participated in campaigns across North Africa, Sicily, Italy, France, and Germany, providing critical artillery support. In subsequent years, the battalion has served in various capacities, including during the Korean War, and is currently assigned to the 3rd Infantry Division, continuing its legacy of excellence and readiness.

The 123rd Signal Battalion was constituted in the United States Army in 1917 and has a distinguished history of providing communications support to military operations. Initially activated during World War I, the unit supported battlefield communications, a vital role it continued in World War II, notably supporting the 3rd Infantry Division during campaigns in North Africa, Italy, France, and Germany. The battalion was later reactivated during the Cold War and served through multiple deployments, including peacekeeping missions and operations in the Balkans. The 123rd Signal Battalion was inactivated in the early 2000s as part of Army force restructuring, but its legacy of technological innovation and steadfast support endures.