Pioneer (military)
A pioneer () is a soldier employed to perform engineering and construction tasks. The term is in principle similar to sapper or combat engineer. Pioneers were originally part of the artillery branch of European armies. Subsequently, they formed part of the engineering branch, the logistic branch, part of the infantry, or even comprised a branch in their own right. Historically, the primary role of pioneer units was to assist other arms in tasks such as the construction of field fortifications, military camps, bridges and roads. Prior to and during the First World War, pioneers were often engaged in the  construction and repair of military railways. During World War II, pioneer units were used extensively by all major forces, both on the front line and in supporting roles. During the 20th century, British Commonwealth military forces came to distinguish between small units of "assault pioneers" belonging to infantry regiments and separate pioneer units (as in the former Royal Pioneer Corps). The United States Marine Corps has sometimes organized its sappers into "Pioneer Battalions". The arrival of the Military engineering vehicle and the deployment of weapons of mass destruction vastly expanded capabilities and complicated mission-profiles of modern pioneer units. Etymology . The word pioneer is originally from France. The word () was borrowed into English, from Old French "pionnier", which meant a "foot soldier", from the root 'peon' recorded in 1523. It was used in a military sense as early as 1626–1627. In the late 18th century, Captain George Smith defined the term as: Pioneer regiments in the Indian Army. Extensive use was made of pioneers in the British Indian Army because of the demands of campaigning in difficult terrain with little or no infrastructure. In 1780, two companies of pioneers were raised in Madras, increasing to 16 in 1803 divided into  two battalions. Bombay and Bengal pioneers were formed during the same period. In the late nineteenth century, a number of existing Indian infantry regiments took the title and the construction role of pioneers. The twelve Indian Pioneer regiments in existence in 1914 were trained and equipped for road, rail and engineering work, as well as for conventional infantry service. While this dual function did not qualify them to be regarded as elite units, the frequency with which they saw active service made postings to pioneer regiments popular with British officers. Prior to World War I, each sepoy in a Pioneer  regiment carried a pickaxe or a light spade in special leather equipment as well as a rifle and bayonet. NCOs and buglers carried axes, saws and billhooks. Heavier equipment, such as explosives, was carried by mule. The unit was therefore well equipped for simple field engineering tasks, as well as being able to defend itself in hostile territory. During the War, the increased specialisation required of Pioneers made them too valuable to use as regular assault infantry. Accordingly, in 1929, the Pioneer regiments were taken out of the line infantry and grouped into the Corps of Madras Pioneers (four battalions ), the Corps of Bombay Pioneers (four battalions), the Corps of Sikhs Pioneers (four battalions), and the Corps of Hazara Pioneers (one battalion). All four Pioneer Corps were disbanded in 1933 and their personnel mostly transferred into the Corps of Sappers and Miners, whose role they had come to parallel. It was concluded that the Pioneer battalions had become less technically effective than the Sappers and Miners, but too well trained in specialist functions to warrant being used as ordinary infantry. In addition, their major role of frontier road building had now been allocated to civilian workers. An Indian Pioneer Corps  was re-established in 1943. Pioneers in the British Army. Historically, British infantry regiments maintained small units of pioneers for heavy work and engineering, especially for clearing paths through forests and for leading assaults on fortifications. These units evolved into assault pioneers. They also inspired the creation of the Royal Pioneer Corps. During World War I, on paper at least, each division was allocated a pioneer infantry battalion, who in addition to being trained infantry were able to conduct pioneer duties. These pioneer battalions were raised and numbered within the existing infantry regiments; where possible recruits were men who possessed  transferable skills from civilian life. The "Royal Pioneer Corps" was a British Army combatant corps used for light engineering tasks. The Royal Pioneer Corps was raised on 17 October 1939 as the Auxiliary Military Pioneer Corps. It was renamed the Pioneer Corps on 22 November 1940. It was renamed the Royal Pioneer Corps on 28 November 1946. On 5 April 1993, the Royal Pioneer Corps united with other units to form the Royal Logistic Corps. The specialist pioneer units in the Royal Logistic Corps, 23 Pioneer Regiment, based at St David's Barracks at Bicester, and 168 Pioneer Regiment, headquartered  in Prince William of Gloucester Barracks at Grantham, were disbanded in 2014, as part of the Army 2020 re-organisation. The ARRC Support Battalion is based at Imjin Barracks, Innsworth (until June 2010, it was at Rheindahlen Military Complex, Germany) All British infantry regiments still maintain assault pioneer units. The Pioneer Sergeant is the only rank allowed to wear a beard on parade. Israeli Army. The Israeli army has an infantry brigade called the "Fighting Pioneer Youth", in Hebrew "Noar Halutzi Lohem" or just ""Nahal"". The title of Israeli military pioneers is a back-derivation from the civilian term. The  Israeli army's pioneers were formed in 1948 from Jewish civilian pioneers, i.e. settlers, who were permitted to combine military service and farming. Pioneer units. Australia. During World War I, Australia raised six pioneer battalions within the First Australian Imperial Force (1st AIF) for service on the Western Front, one per division: In World War II, four pioneer battalions were raised as part of the Second Australian Imperial Force (2nd AIF): Other World War II pioneer units: India. "For Indian Army Pioneer Corps, see also Indian Army Pioneer Corps" British Indian Army Pioneer Battalions enlisted, drilled and trained as any  other native infantry battalion of the line, but received additional construction training.