It is part of the first ring of fortifications around the city of Belfort.
Do we have sufficient data about the depth and nature of the ring of fortifications around Arkon?
In 1643 a major construction effort was made, to provide a comprehensive ring of fortifications around the city.
It led into the Lices, a dusty, wide area between the outer and inner ring of fortifications.
The castle was built with box-like rooms surrounded by rings of fortifications.
The removal of the ring of fortifications around Paris created space for many new parks and squares.
Gates had to be built to allow access into and out of the area enclosed by the ring of fortifications.
The inner ring of fortifications was now redundant militarily, and hampered the city's development.
Since then, the station has added ring upon ring of fortifications.
It is located between the two main rings of fortifications, next to the palace of the same name.