What is the town in northeastern France on the Meuse River that was a scene of several battles during World War 1?

The Marne river,

The Somme river, or

The Meuse river

The Somme river is perhaps most famous as a result of the World War I Battle of the Somme (July 1, 1916).

The Meuse river saw battles near the fortress of Verdun, where the fighting between the French and the Germans was very fierce especially in early 1916.

The great battles which finally stopped the German advance in the Spring Offensive of 1918 were fought around the valley of the Somme in places like Villers Bretonneux, which marked the beginning of the end of the war.

The Somme is the best known. The Aisne also was a battle site and also the Oise. As was the Marne against the French in the Autumn of 1914. The Marne river is where the French stopped the German advance on Paris..so you are most likely looking for the Somme.