At Verdun the Germans are attacking Fort Vaux, hoping to seize it and then press on to Verdun itself. After establishing themselves on the fort yesterday, today they complete its encirclement, cutting it off completely from French positions to the south. And they begin the work of storming the fort, attempting to advance down the north west corridor into its heart.
The French have barricaded the passageway and exact a heavy toll on the Germans as they try to move down the narrow shaft. The Germans on top of the fort suffer also from the attentions of French artillery. But the defenders of Fort Vaux are suffering too in the savage underground fighting. And unlike the Germans their numbers cannot be made good with reinforcements.
image source (Les Français à Verdun)