Monument national de la victoire de la Marne, World War I memorial in Mondement-Montgivroux, France

The Monument national de la victoire de la Marne is a 35.5-metre-high monolith shaped like a colossal boundary marker, cast on a metal frame in concrete made with pink aggregates from the Moselle. It stands on a hilltop at 209 metres, slightly apart from the village between the château and the church. Its north face carries a low relief of the generals of the First Battle of the Marne and two engraved inscriptions, including Joffre's order of the day of 6 September 1914.

The memorial was erected to commemorate the First Battle of the Marne in September 1914, when French forces stopped the German advance toward Paris at this strategic point. This victory became a turning point in the war and established the site as a symbol of French resistance.

The monument is cared for by the Association Mondement 1914 – Les soldats de la Marne – Joffre – Foch, whose volunteers keep the memory alive. In the village church and on the wall of the military square in the adjoining cemetery, inscriptions honour the 77th Infantry Regiment and the zouaves of the Moroccan Division.

The memorial and an adjacent museum are accessible year-round, with guided tours available through the Sézanne tourism office upon request. The site is relatively easy to reach and allows visitors to spend as much time as they need exploring the grounds.

The column is a colossal borne, cast on a metal frame in concrete made with pink aggregates from the Moselle, and its foundations reach 22 metres into the ground. On the upper left face, a carved marking is visible; the inscriptions and bas-reliefs cover the monolith's faces.