The Combat Organization of the Polish Socialist Party was a Polish guerrilla resistance movement established in 1904 by Józef Piłsudski. It functioned as the paramilitary wing of the Polish Socialist
Postcard released by PPS around 1905–1907. Text in top left corner: 'Fighters for freedom'. Tombstones have names of PPS members who died in recent actions.
The Bolshevik Military and Battle Organizations consisted of illegal armed formations of Bolsheviks in the Russian Empire. They played a leading role among combat detachments of working class and revo
Bolshevik Military Organizations (from left to right) seated: Kirill Orlov, Konstantin Mekhonoshin, Vladimir Nevsky, Nikolai Podvoisky, Pyotr Dashkevich, Fyodor Raskolnikov; standing up: Boris Zanko, Mikhail Kedrov, Vasiliy Panyushkin, Alexander Tarasov-Rodionov