Polish Committee of National Liberation
After the governments of the United Kingdom and the United States broke the pacts with Poland and accepted the communist "Polish Committee of National Liberation" as the provisional government of Poland, Łupaszka restarted hostilities—this time against the new oppressor, in the ranks of Wolność i Niezawisłość organization. However, after several successful actions against the NKVD units in the area of Białowieża Forest, it became apparent that such actions would result in the total destruction of his unit.