The United States Army Corps of Engineers (USACE) is a direct reporting unit and engineer formation of the United States Army that has three primary mission areas: Engineer Regiment, military construction, and civil works. The day-to-day activities of the three mission areas are administered by a lieutenant general known as the chief of engineers/commanding general. The chief of engineers commands the Engineer Regiment, comprising combat engineer, rescue, construction, dive, and other specialty units, and answers directly to the Chief of Staff of the Army. Combat engineers, sometimes called sappers, form an integral part of the Army's combined arms team and are found in all Army service components: Regular Army, National Guard, and Army Reserve. Their duties are to breach obstacles; construct fighting positions, fixed/floating bridges, and obstacles and defensive positions; place and detonate explosives; conduct route clearance operations; emplace and detect landmines; and fight as provisional infantry when required. For the military construction mission, the chief of engineers is directed and supervised by the Assistant Secretary of the Army for installations, environment, and energy, whom the President appoints and the Senate confirms. Military construction relates to construction on military bases and worldwide installations.
Military engineering is loosely defined as the art, science, and practice of designing and building military works and maintaining lines of military transport and military communications. Military engineers are also responsible for logistics behind military tactics. Modern military engineering differs from civil engineering. In the 20th and 21st centuries, military engineering also includes CBRN defense and other engineering disciplines such as mechanical and electrical engineering techniques.
Corps is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies greatly, but two to five divisions and anywhere from 40,000 to 80,000 are the numbers stated by the US Department of Defense.
A sapper, also called a combat engineer, is a combatant or soldier who performs a variety of military engineering duties, such as breaching fortifications, demolitions, bridge-building, laying or clearing minefields, preparing field defenses, and road and airfield construction and repair.
The Corps of Royal Engineers, usually called the Royal Engineers (RE), and commonly known as the Sappers, is the engineering arm of the British Army. It provides military engineering and other technical support to the British Armed Forces and is headed by the Chief Royal Engineer. The Corps Headquarters and the Royal School of Military Engineering are in Chatham in Kent, England. The corps is divided into several regiments, barracked at various places in the United Kingdom and around the world.
A combat engineer is a type of soldier who performs military engineering tasks in support of land forces combat operations. Combat engineers perform a variety of military engineering, tunnel and mine warfare tasks, as well as construction and demolition duties in and out of combat zones.
William C. Gribble Jr. graduated from the United States Military Academy in 1941 and was commissioned in the Corps of Engineers.
The Canadian Military Engineers is the military engineering personnel branch of the Canadian Armed Forces. The members of the branch that wear army uniform comprise the Corps of Royal Canadian Engineers.
In the United States Army, the term combat support refers to units that provide fire support and operational assistance to combat elements. Combat support units provide specialized support functions to combat units in the following areas
The Royal Australian Engineers (RAE) is the military engineering corps of the Australian Army. The RAE is ranked fourth in seniority of the corps of the Australian Army, behind the Staff Cadets, Armoured and Artillery Corps. The corps was formed by the amalgamation of the various colonial engineer corps of the states and territories of Australia in 1902 and since then has served in various conflicts including World War I, World War II and the Vietnam War. The corps has also served on numerous peacekeeping operations and was heavily involved in the Australian contribution to the war in Afghanistan.
The Corp of Sri Lanka Engineers (SLE) is a combat support arm of the Sri Lanka Army which provides military engineering. It is made up of ten regular regiments and one volunteer regiment. Headquartered at Panagoda Cantonment, it is headed by the Centre Commandant.
The Indian Army Corps of Engineers is a combat support arm which provides combat engineering support, develops infrastructure for armed forces and other defence organisations and maintains connectivity along the borders, besides helping the civil authorities during natural disasters. College of Military Engineering, Pune (CME) is the premier technical and tactical training institution of the Indian Army Corps of Engineers.
Several military services have combat engineer service corps:
A pioneer is a soldier employed to perform engineering and construction tasks. The term is in principle similar to sapper or combat engineer.
College of Military Engineering (CME) is a technical and tactical engineering training institution of the Indian Army Corps of Engineers of the Indian Army. Training of Combat Engineers, Military Engineering Service, Border Roads Engineering Services (BRES) and Survey is done here.
The United States first formed a military engineering capability on 16 June 1775, when the Continental Congress established an army with a chief engineer and two assistants. Subsequently, on 16 March 1802, the Corps of Engineers was organized by the President. Today, Military Engineers are grouped separately within each of the armed services.
The page contains the current structure of the British Army. The British Army is currently being reorganised to the Future Soldier structure.
The Indonesian Army Corps of Engineers, abbreviated Pusziad, or simply Zeni is an Indonesian Army Central Executive Agency made up of some 15,000 civilian and military personnel, making it one of Southeast Asia's and the ASEAN's, largest public engineering, design, and construction management agencies. The Corps is involved in a wide range of disaster relief and public works projects within the republic, as well as in combat support operations. The Indonesian term for military engineers, Zeni, is derived from the Dutch genie, meaning sapper.
Royal Australian Engineers 
Canadian Military Engineers 
Pioneeripataljon 
Indian Army Corps of Engineers 
Indonesian Army Corps of Engineers 
Jihad of Construction (defunct)
Engineer Corps (Ireland) 
Combat Engineering Corps 
Corps of Royal New Zealand Engineers 
Pakistan Army Corps of Engineers 
Russian Engineer Troops 
Sri Lanka Engineers 
Royal Engineers 
United States Army Corps of Engineers 
South African Engineer Corps 
