The size of the standing army remained at about the 100,000-man mark decreed by the treaty, but a new group of conscripts equal to this size would receive training each year. The conscription law formalized the name "Wehrmacht". The existence of the Wehrmacht was officially announced on 15 October 1935 under Nazi authority. The insignia was a simpler version of the Iron Cross (the straight-armed so-called "Balkenkreuz" or beamed cross). This had been used as an aircraft and tank marking late in World War I.