 In May 1940, he was transported from Kozelsk to a camp called Pavlishchev Bor, and then to Gryazovets (; ).In 1941, following Operation Barbarossa and the Sikorski-Maisky agreement he was released during the Amnesty for Polish citizens in the Soviet Union and joined the Polish Armed Forces in the East being formed in Buzuluk ().He was promoted to Rotmistrz and lead a company in the 1st Krechowce Uhlan Regiment ().