Podziemie
Podziemie, in Polish usage, translates to "underground" and denotes clandestine political, military, or cultural organizations operating outside official state structures, often in opposition to occupying powers or authorities. The term describes networks and institutions that function in secrecy to preserve continuity of government, law, education, and culture when the formal state is suspended or banned. Common features include covert membership, coded communications, illegal press, and parallel welfare or administrative activities.
Historically, the phrase is closely associated with the Polish Underground State (Polskie Państwo Podziemne) during World
After 1945, "podziemie" also referred to anti-communist resistance and dissident networks operating under the communist regime,
In contemporary usage, podziemie can describe any covert or non-legal opposition or activity, including underground press,