On 25 December, the French 66th Division and a battalion of attacked through deep snow and woods, to improve the French position on the peak of Hartmannswillerkopf. The French attack succeeded but the German defenders were pushed back only a short distance. Division of attacked on a line from Hartmannswillerkopf to the Herrengluh ruins, Wolfskopf and Amselkopf in thick fog from 18 to 21 January 1915 and managed to surround the French positions, recapturing the summit of Hartmannswillerkopf and Hirzstein to the south, a French counter-attack being repulsed. The main German attack on 30 January, near Wattwiller, made early progress then bogged down against the French defences. French attacks against Division from 19 to 27 February were repulsed but on 26 February, a French attack gained . On 5 March, the French captured a blockhouse and a German counter-attack by two regiments was defeated.