The housing estate Campagne à Paris [fr] is located on the west side, near the Porte de Bagnolet.

The French war department had completed the Thiers wall – including fortifications, a dry moat, a Rue Militaire and a large berm – around 1840.

In 1859, the military engineering service gave conditional control to the Paris city council.

The Thiers wall, with its accompanying berm and moat, led to a profound disruption and complication of the synergistic relationship between Paris and its suburbs.

[1] The Boulevards of the Marshals concept was almost fully realized by 1932, though the final three sections, closing the ring, would not be completed until 2005.