Despite Soviet and German occupation, the constitutional Polish authorities continued to operate, both in exile and back home, with the Polish Underground State (Polskie Państwo Podziemne, PPP) established in the territory of occupied Poland. Numerous military organizations were established in the Polish underground. Beginning with 1942, most of them were merged into the Home Army (Armia Krajowa, AK), that is, the underground Polish Army. Its objective was to start an uprising at the right moment. There were also other underground organizations, with the major ones associated with the National Party and the peasants’ movement.