sentences:  Until the Winter War and the Continuation War, it had been the administrative center of the Sakkola municipality of Finland.It hosts an interceptor aircraft base, which is an old, small fighter airfield with a crude runway extension from 2,000 to 2,500 m. It was home to the 180th Guards Fighter Aviation Regiment PVO (180 GvIAP) which flew Mikoyan MiG-31 aircraft as late as 1991.It is located only 90 km north of Saint Petersburg (Leningrad).