The examples and perspective in this article deal primarily with Europe and the English-speaking world and do not represent a worldwide view of the subject. (February 2015) (Learn how and when to remove this template message)
Camp followers are civilians who follow armies. There are two common types of camp followers; first, the wives and children of soldiers, who follow their spouse or parent's army from place to place; the second type of camp followers have historically been informal army service providers, servicing the needs of encamped soldiers, in particular selling goods or services that the military does not supply--these have included cooking, laundering, liquor, nursing, sexual services and sutlery.
From the beginning of organized warfare until the end of the 19th century, European and American armies heavily depended on the services of camp followers. These services included delivery and preparation of provisions and transportation of supplies, which augmented the official military support structure. Camp followers usually accompanied the baggage train and they often outnumbered the army itself, adding to its logistical problems. Camp followers were both a support and drain on an army as they provided valuable services but also increased difficulties in logistics and security. Soldiers' wives washed, sewed, nursed and even acted as servants. However, camp followers needed to be fed, clothed, transported and guarded. They also had to be policed; camp followers could be among the most determined scavengers and looters after battles and whilst on the march.
From the middle of the 19th century on, the creation of organized and resourced transport, medical, ordnance and supply corps as an integral part of regular armies marked the end of reliance on camp followers in most European armies. However, in much of the world the concept of numerous civilian workers, family members and hangers-on accompanying armies survived into the 20th century, either for reasons of local culture or in the absence of formal support services. A notable example was the Mexican Revolution of 1910-1920, where female soldaderas filling traditional camp roles, carrying equipment and often acting as combatants were a marked feature of Zapatista, Villistas and Federal forces at all times.
In the military history of the United States camp followers were important in servicing and supplying the army during the Revolutionary War. There were also camp followers on both the Union and Confederate sides of the American Civil War. However, a major difference between the armies of the American Revolution and the Civil War was the presence of women and children. By the time of the Civil War, camps and campaigns included far fewer wives, children and other relatives of soldiers. Women still served as nurses in hospitals and in other limited support roles, but were not present in the same way in the earlier war.
During the 19th century, members of Plains Indians who set up camp outside U.S. military forts or Indian agencies became known disparagingly as "loafers", or "loaf-around-the-fort Indians" or "hang-around-the-fort Indians". They along with the Indian scouts were seen by settlers as appeasing and docile, in stark contrast with the fierce and capable warriors whom the soldiers had to fight.
Today's military operations in combat zones, such as the Iraq War that began with US invasion in 2003 or the Afghan War that began in 2001, feature extensive roles played by civilian contractors in providing logistic support for the armed forces. This has led journalists and historians to liken the phenomenon to that of camp followers.
"Camp-follower" has also been used to describe the modern families of military personnel who accompany soldiers while traveling; either during active military campaigns (more common in less-developed countries), or during peacetime military deployments (more common in developed countries), especially moving from military base to military base in a nomadic lifestyle (more common in developed countries).
Modern camp-follower children are now more often called military brats in several English-speaking countries. In the United States, Canada and Great Britain, the term refers specifically to the mobile children of career soldiers, who traditionally have been camp or base followers. In the United States this practice of base-following, or camp-following, dates all the way back to the beginning of the Republic.
Some work has also been done to document and describe military brat subcultures from other English speaking countries as well.