pihlajasaaret is a group of islands south of jätkäsaari. in summer 1916 the 75 mm anti-aircraft battery on melkki was relocated to itäinen pihlajasaari . the guns were on temporary wooden platforms, and the battery was relocated already in august as construction of new fortified concrete anti-aircraft positions and shelters began. the fortification work was completed but the guns were not installed before the war ended.