Home front is an English language term with analogues in other languages. It is commonly used to describe the civilian populace of the nation at war as an active support system for their military.
Civilians are traditionally uninvolved in combat, except when the hostilities happen to reach their residential areas. However, the expanded destructive capabilities of modern warfare posed an increased direct threat to civilian populations. With the rapid increase of military technology, the term "military effort" has changed to include the "home front" as a reflection of both a civilian "sector" capacity to produce arms, as well as the structural or policy changes which deal with its vulnerability to direct attack.