| Alpine Line | |
|---|---|
| Southeastern France | |
 Block B1 at Rimplas | |
| Type | Defensive line |
| Site information | |
| Controlled by | France |
| Site history | |
| Built | 1930–1940 |
| In use | 1935–1969 |
| Materials | Concrete, steel |
| Battles/wars | Italian invasion of France, Operation Dragoon, Second Battle of the Alps |
The Alpine Line (French: Ligne Alpine) or Little Maginot Line (French: Petite Ligne Maginot) was the component of the Maginot Line that defended the southeastern portion of France. In contrast to the main line in the northeastern portion of France, the Alpine Line traversed a mountainous region of the Maritime Alps, the Cottian Alps and the Graian Alps, with relatively few passes suitable for invading armies. Access was difficult for construction and for the Alpine Line garrisons. Consequently, fortifications were smaller in scale than the fortifications of the main Line. The Alpine Line mounted few anti-tank weapons, since the terrain was mostly unsuitable for the use of tanks. Ouvrage Rimplas was the first Maginot fortification to be completed on any portion of the Maginot Line, in 1928. The Alpine Line was unsuccessfully attacked by Italian forces during the Italian invasion of France in 1940. Following World War II, some of the larger positions of the Alpine Line were retained in use through the Cold War.