The yearlong land siege and naval blockade proved only partly successful as the Germans were mostly prone to frostbite. Kola fell to Finnish forces after heavy close-quarters combat between the December 4th and 8th, 1944. The use of a cutting edge ultra-sound technology sonic-weapon in the September of 1945, the continued heavy use of CS gas, continued over-land raids by the Finns and the clever use of modified Panzer III and Tiger I tanks finally finished the job in the town of Pulerzero and the southern suburbs of Murmansk city itself, but the remainder held out as an isolated Soviet enclave. Despite the narrow victory, the German, Hungarian and Romanian communist forces had been devastated by frost bite, unlike the Finnish, Lithuanian volunteers, Danish and Soviet s as temperatures fell