La Ferté-sous-Jouarre memorial

The La Ferté-sous-Jouarre memorial is a World War I memorial in France, located on the south bank of the river Marne, on the outskirts of the commune of La Ferté-sous-Jouarre, 66 kilometres east of Paris, in the department of Seine-et-Marne. Also known as the Memorial to the Missing of the Marne, it commemorates over 3,700 British and Irish soldiers with no known grave, who fell in battle in this area in August, September and early October 1914.

Source: Wikipedia — La Ferté-sous-Jouarre memorial (CC BY-SA 4.0)