Willy Rohr developed successful in 1915 the "Shock-Troops-Taktiks" in the Western Front. They had been used in the Battle of Verdun. His Bataillon became independent and was first named as "Sturmbataillon Rohr" and became about one year later renamed by the "Prussian Minister of War" to "Sturm-Bataillon Nr. 5 (Rohr)".