The United States Army Corps of Engineers (USACE) is the military engineering branch of the United States Army. A direct reporting unit (DRU), it has three primary mission areas: Engineer Regiment, military construction, and civil works. USACE has 37,000 civilian and military personnel, making it one of the world's largest public engineering, design, and construction management agencies. The USACE workforce is approximately 97% civilian, 3% active duty military. The civilian workforce is primarily located in the United States, Europe and in select Middle East office locations. Civilians do not function as active duty military and are not required to be in active war and combat zones; however, volunteer opportunities do exist for civilians to do so.
The National Geospatial-Intelligence Agency (NGA) is a combat support agency within the United States Department of Defense whose primary mission is collecting, analyzing, and distributing geospatial intelligence (GEOINT) in support of national security. Initially known as the National Imagery and Mapping Agency (NIMA) from 1996 to 2003, it is a member of the United States Intelligence Community.
The XVIII Airborne Corps is a corps of the United States Army that has been in existence since 1942 and saw extensive service during World War II. The corps is designed for rapid deployment anywhere in the world and is referred to as "America's Contingency Corps." Its headquarters are at Fort Liberty, North Carolina.
The 1st Cavalry Division is a combined arms division and is one of the most decorated combat divisions of the United States Army. It is based at Fort Cavazos, Texas. It was formed in 1921 and served during World War II, the Korean War, the Vietnam War, the Persian Gulf War, with the Stabilization Force in Bosnia-Herzegovina, in the Iraq War, in the War in Afghanistan as well as Operation Freedom's Sentinel and Operation Inherent Resolve. As of July 2023, the 1st Cavalry Division is subordinate to III Armored Corps and is commanded by Major General Thomas M. Feltey
The 5th Infantry Division (Mechanized)—nicknamed the "Red Diamond", or the "Red Devils" —was an infantry division of the United States Army that served in World War I, World War II and the Vietnam War, and with NATO and the U.S. Army III Corps. It was inactivated on 24 November 1992 and reflagged as the 2nd Armored Division.
The 29th Infantry Division, also known as the "Blue and Gray Division", is an infantry division of the United States Army based at Fort Belvoir in Fairfax County, Virginia. The division is currently a formation of the Army National Guard and includes units from Virginia, Maryland, Kentucky, North Carolina, South Carolina, and West Virginia.
The 9th Infantry Division is an inactive infantry division of the United States Army. It was formed as the 9th Division during World War I, but never deployed overseas. In later years it was an important unit of the U.S. Army during World War II and the Vietnam War. It was also activated as a peacetime readiness unit from 1947 to 1962 at Fort Dix, New Jersey, and Fort Carson, Colorado, and from 1972 to 1991 as an active-duty infantry division at Fort Lewis, Washington. The division was inactivated in December 1991.
The 20th Engineer Brigade is a combat engineer brigade assigned to the XVIII Airborne Corps of the United States Army stationed at Fort Liberty. Although the brigade was identified as an airborne unit, not all of its subordinate units were airborne qualified—despite the airborne tab as part of the unit patch. Soldiers of the 20th Engineer Brigade provide various supportive duties to other Army units, including construction, engineering, and mechanical work on other Army projects.
The Royal Australian Survey Corps was a Corps of the Australian Army, formed on 1 July 1915 and disbanded on 1 July 1996. As one of the principal military survey units in Australia, the role of the Royal Australian Survey Corps was to provide the maps, aeronautical charts, hydrographical charts and geodetic and control survey data required for land combat operations.
The 11th Infantry Brigade is an inactive infantry brigade of the United States Army. It was first formed as part of the 6th Division during World War I. It is best known for its service with the 23rd Infantry Division from 1967 through 1971 in the Vietnam War as a light infantry brigade. The brigade is known for its responsibility in the My Lai Massacre.
The U.S. Army Corps of Topographical Engineers was a branch of the United States Army authorized on 4 July 1838. It consisted only of officers who were handpicked from West Point and was used for mapping and the design and construction of federal civil works such as lighthouses and other coastal fortifications and navigational routes. Members included such officers as George Meade, John C. Frémont, Thomas J. Cram and Stephen Long. It was merged with the United States Army Corps of Engineers on 31 March 1863, at which point the Corps of Engineers also assumed the Lakes Survey for the Great Lakes. In the mid-19th century, Corps of Engineers' officers ran Lighthouse Districts in tandem with U.S. Naval officers.
The structure of the United States Army is complex, and can be interpreted in several different ways: active/reserve, operational/administrative, and branches/functional areas.
The Ethiopia-United States Mapping Mission, also known as the Ethi-U.S. Mapping Mission, was an operation undertaken by the United States Army during the 1960s to provide up-to-date topographic map coverage of the entire country of Ethiopia. The soldiers who conducted the mapping operations on the ground during that time used the latest surveying and mapping techniques and were exposed to many hardships and dangers, but they completed their mission near the end of the decade. The maps that were created still serve as the base maps for the country of Ethiopia and are presently being updated and maintained by the Ethiopian Mapping Authority.
The Ethiopian Mapping Agency (EMA) is an Ethiopian government agency, a department within the Ministry of Finance and Cooperation, that is responsible for cartographic mapping and remote sensing activities in Ethiopia. The EMA has expanded its operation to include a comprehensive map revision program in addition to various phases of digital mapping and information technology.
Irene Kaminka Fischer was an Austrian-American mathematician and geodesist. She was a member of the National Academy of Engineering, a Fellow of the American Geophysical Union, and inductee of the National Imagery and Mapping Agency Hall of Fame. Fischer became one of two internationally known women scientists in the field of geodesy during the golden age of the Project Mercury and the Apollo program. Her Mercury datum, as well as her work on the lunar parallax, were instrumental in conducting these missions. "In his preface to the ACSM publication, Fischer's former colleague, Bernard Chovitz, referred to her as one of the most renowned geodesists of the third quarter of the twentieth century. Yet this fact alone makes her one of the most renowned geodesists of all times, because, according to Chovitz, the third quarter of the twentieth century witnessed "the transition of geodesy from a regional to a global enterprise."
Charles H. Ruth (1889–1949) was considered the founding father of the Army Map Service. Ruth was first commanding officer of the Army Engineer Reproduction Plant (ERP). Prior to 1917 the Army Corps of Engineers compiled and drafted maps. Reproduction was accomplished by the Department of the Interior or commercial facilities. The ERP was the predecessor organization to the Army Map Service, Army Topographic Command, Defense Mapping Agency and now National Geospatial-Intelligence Agency.
Major James Warren Bagley was an American aerial photographer, topographic engineer and inventor.
The 429th Brigade Support Battalion is a combat service support battalion of the United States Army and the Virginia National Guard. It is part of the 116th Infantry Brigade Combat Team, Virginia Army National Guard.
The 655th Engineer Topographic Battalion was a technical support unit formed to provide surveying, drafting, and map production activities for the US Army during World War II. With the beginning of the war in Europe, the U.S. realized that the existing European maps were inadequate for tactical purposes or use by artillery units, since existing map grids were inconsistent and did not match up between countries. The Engineer Topographic Battalion's wartime mission was the development of accurate 4-color topographic maps created through timely survey work, drafting, printing, and distribution of military maps as required by the Allied Armed Forces of the United States. The Battalion was first formed in December 1943 and deactivated in December 1946.
8 Field Survey Squadron was a unit of the Australian Army and the Royal Australian Survey Corps, being raised in December 1971 at Popondetta, Territory of Papua New Guinea and disbanded twenty-four years later on 1 December 1995 in Port Moresby, Papua New Guinea (PNG). The squadron's initial role was to establish geodetic survey control, establish topographic survey control for mapping, compile and field complete preliminary topographic maps, and conduct other surveys and mapping including acquiring air photography. In 1980 the role changed to provide support and advice to the PNG Defence Force and PNG National Mapping Bureau on all aspects of survey and mapping and to provide liaison support for Australian based survey units on operations in the country.
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