Feste Graf Haeseler/Group Fortification Verdun - Credit: Wikimedia Commons
The , renamed Group Fortification Verdun after 1919, is a military installation near Metz. Constituted as forts Sommy and Saint-Blaise, the fortified group is part of the second fortified belt of forts of Metz. It had its baptism of fire in late 1944, when the Battle of Metz occurred. Read more on Wikipedia
Source: en.wikipedia.org