 The Poles hoped to capture the territory up to the Foch Line and advance further to take control of the towns of Seirijai, Lazdijai, Kapčiamiestis as far as Simnas.According to the Polish historian Tadeusz Mańczuk, Piłsudski – who was planning a coup d'état in Kaunas – discouraged the local PMO activists from carrying out the Sejny Uprising.Piłsudski reasoned that any hostilities could leave Lithuanians even more opposed to the proposed union with Poland (see Międzymorze).