Polish Secret State (also known as Polish Underground State; Polish Polskie Państwo Podziemne) is a term coined by Jan Karski in his book Story of a Secret State; it is used to refer to all underground resistance organizations in Poland during World War II, both military and civilian.

The term is used in Polish historiography to denote both armed struggle against the occupying powers and all the examples of underground political, social and educational activities.

See also:

• History of Poland (1939-1945)
• Armia Krajowa
• Polish Government in Exile
• Polish contribution to World War II

External links:

• The Polish government and the Polish Underground State
• Polish Secret State during WWII
• The Polish Underground State and the Home Army