 In 1946, after the arrests of many activists, he left the city and joined the armed resistance.Within a year he commanded Birutė brigade of Tauras district that was active in Kaunas area.At the end of 1947, he along with fellow partisans Jurgis Krikščiūnas–Rimvydas and Kazimieras Pyplys–Mažytis crossed through the Iron Curtain as a messengers to the West in hopes to attract support for the fighters and to establish contacts with Lithuanians in exile.