"1939Z"^^ . "Rz\u0105d Rzeczypospolitej Polskiej na uchod\u017Astwie"@en . "Polish Underground State"@en . "The Polish Underground State (Polish: Polskie Pa\u0144stwo Podziemne, also known as the Polish Secret State) is a collective term for the underground resistance organizations in Poland during World War II, both military and civilian, that were loyal to the Government of the Republic of Poland in exile in London. The first elements of the Underground State were established in the final days of the German invasion of Poland that began in September 1939."@en . "1945-06-28Z"^^ . . . "1945Z"^^ . . "Polskie Pa\u0144stwo Podziemne"@en . "1939-09-17Z"^^ .