sentences:  This move allowed the Soviets to retain tactical control of the region, deny it to the Poles, and increase the already high tensions between the Poles and Lithuanians, both of whom claimed the disputed territory as their own.In early October 1920, under international pressure from the Spa and Suwałki Conferences, the Poles and Lithuanians signed a ceasefire in the Sudova region, but, with the issue of Vilnius remaining under Lithuanian control, the issue was unresolved.The Poles rested their claim on then current ethnographic considerations, as approximately 65% of the inhabitants of the city at the time were Polish-speakers, while Lithuanians constituted approximately 1-2% of the city's population.