In July 1919, the Entente ordered the German army to leave the Suwałki Region, and adopted the Foch Line as a temporary demarcation line between Poland and Lithuania. The line left on the Polish side: the counties of Suwałki and Augustów, the town of Sejny, and four communes (gminas) of the Sejny county: Krasnopol, Krasnowo, Berżniki, and Giby.