Central Europe Germany Italy Spain (Spanish Civil War) Albania Austria Baltic states Belgium Bulgaria Burma China Czechia Denmark France Germany Greece Italy Japan Jewish Luxembourg Netherlands Norway Poland Romania Slovakia Spain Soviet Union Yugoslavia Germany Italy Netherlands Portugal Spain Sweden Switzerland United Kingdom United States The Polish Socialists (Polish: Polscy Socjaliści, (PS)) was an underground political party formed in occupied Poland during World War II by activists of the Polish Socialist Party (PPS) as an alternative to the Polish Socialist Party – Freedom, Equality, Independence (PPS-WRN).

With the invasion by Nazi Germany these plans were adopted to a situation of occupation with guerilla units being formed from the ranks of Socialist Action.

Activists including Norbert Barlicki, Stanisław Dubois, Adam Próchnik, and Zygmunt Żuławski claimed the PPS-WRN was not the legitimate heir to PPS and denounced its hostile stance toward the Soviet union in the face of Nazism.

On 1 September 1941 a rival successor to the PPS, led by Próchnik, was initiated in the form of PS, which quickly took advantage of the vacancy on the PKP.

[4] Prior to coalescing into a party claiming to be the rightful successor to the PPS, the activity of its founders was concentrated around various publishing endevours including Barykada Wolności and Gwardia.