this end, a puppet government, the Finnish Democratic Republic, was established in Terijoki under the leadership of the exiled O. W. Kuusinen. The first attack, on 30 November 1939, was an aerial bombardment of the city of Helsinki, with subsidiary attacks all along the Finnish-Soviet border. This had the effect of instantly unifying the once deeply-divided Finnish people in defense of their homes and country, without any referendums needing to be carried out. Strategic goals of the Red Army included cutting Finland in half and capturing Petsamo in the north and Helsinki in the south. The leader of the Leningrad Military District, Andrei Zhdanov, commissioned a celebratory piece from Dmitri Shostakovich, Suite on Finnish Themes, intended to be performed as the marching bands of the Red Army paraded through Helsinki. The Soviets had been building up their forces on the border during the earlier negotiations, and now fielded four armies composed of 16 divisions, with another three being brought into position; meanwhile, the Finnish army had just 9 smaller divisions. The Soviets also enjoyed overwhelming superiority in the number of armour and air units deployed. The Finns had to defend a border that was some 1287 km (800 miles) in length, putting them at a significant disadvantage. The Winter War was fought in three stages: the initial Soviet advance, a short lull, and then a renewed Soviet offensive. The war was fought mainly in three areas. The Karelian Isthmus and the area of Lake Ladoga were the primary focus of the Soviet war effort. A two-pronged attack was launched in this region, with one pincer engaging Finnish forces on the Isthmus while the other went around Lake Ladoga in an attempt at encircling the defenders. This force was then to advance to and capture the city of Viipuri. The second front was in central Karelia, where Soviet forces were to advance to the city of Oulu, cutting the country in half. Finally, a drive from the north was intended to capture the Petsamo region. By late December the Soviets had become bogged down, with the two main fronts at a standstill as the Finns counterattacked with greater strength than anticipated. With the failure of two of its three offensives by the end of December, Soviet headquarters ordered a cessation of operations. By 27 December, it was observed that the Soviets were digging in on the Karelian Isthmus. In the north,