infantry units at the fortress manned the landward defences and provided detachments on the coastal forts for anti-landing and close defence duties. the peacetime krepost sveaborg fortress infantry regiment was reinforced by conscript units, which in 1915 were organized as the 427th and 428th infantry regiments to a new 107th infantry division which was sent to front line after a training period. in spring 1916 regiments from the new 116th division manned the fortress. at the autumn of 1916 units from different fortresses were brought to krepost sveaborg and organized into the 128th infantry division. in july 1917 the fortress was manned by the fortress infantry regiment and the 428th lodeynoye pole infantry regiment of the 128th division. in october 1917 the 128th was replaced by the 29th infantry division, badly mauled at the front and brought to krepost sveaborg for rest. at january–february 1918, when finland gained its independence, krepost sveaborg had six infantry regiments: the 696th revolutionary regiment, the fortress infantry regiment and 113th, 114th, 115th and 116th regiments of the 29th infantry division.