 Complete the following phrase:  In late August, Lithuanian and Polish missions met in Kaunas to negotiate the situation. While the talks were underway, Polish troops retook Sejny, Augustów, and Suwałki in the south. The Suwałki Region held great symbolic importance for the Lithuanians as a locus of their independence movement. Lithuania mounted military operations in the area. Poland also wanted to reclaim Vilnius, which it had been forced to abandon during the Soviet offensive in July. The clashes led to a 