based on a rota system. Conscription was introduced in Finland in 1878. The Finnish Guard took part in fighting to suppress the 1830 November Uprising in Poland and participated in the Russo-Turkish War (1877–1878), after which it gained the status of Old Guard of the Russian Emperor. The Finnish army was gradually broken up during the "oppression years" just after the turn of the century. As Finnish conscripts refused to serve in the Russian Imperial Army, conscription ended in Finland and it was replaced with a tax paid from the Finnish Senate to the Imperial treasury. At the end of the 19th century the Russian empire was weakening, and this was reflected in a reduced capacity of the Russian troops to keep public order. Voluntary defence organizations disguised as fire brigades were formed by the Finnish people, especially during the strikes during and after the Russo-Japanese War. There were socialist Red Guards and conservative, anti-socialist Protection Guards (or White Guards). Also, during the First World War activists secretly travelled to Germany to receive military training and to be trained as Jäger troops (in finnish jääkärit, in swedish jägare). After independence and beginning of the Finnish Civil War the White government declared the White Guards as government troops, and the war was fought between the Red Guards, assisted by Communist Russians, and White Guards added with the Jägers and assisted by the German Empire. After the war in 1919, the Protection Guards became a separate organization. Therefore, strictly speaking, there is no continuity between the White Guards, which became a voluntary organization, and the Finnish army, which was a cadre army based on conscription. However, Jägers gained important positions in the army, and German tactics and military principles were adopted. Winter War The Finnish Army consisted of 9 field divisions, 4 brigades and a number of small independent battalions and companies at the beginning of the Winter War in 1939. The Army was organised into three corps. The II and III Corps were organised into the Army of the Isthmus which was located on the Karelian Isthmus, the likely location for the main Soviet attack. The IV Corps defended the area north of Lake Ladoga. The defence of the rest of the border up to Petsamo by the Arctic Ocean was given to the North Finland Group which consisted of a handful of independent battalions. In order to organize replacements for