The first action of the Organizacja Bojowa took place soon after the PPS started to organize an increasing number of demonstrations (mostly in Warsaw). On October 28, 1904, Russian Cossack cavalry trampled the participants in one of the demonstrations; in revenge, on November 13 the 'Bojówki' opened fire on the Russian police and military during a new demonstration. First concentrating on fighting the spies and informants, in March 1905 'Bojówki' started using bombs to assassinate selected members of Russian police, both regular and secret (Okhrana) responsible for repression of Poles in the partitioned Poland. 'Bojówki' also assaulted Russian transports of money leaving the Polish territories. Among the most famous of these was the raid at Bezdany near Vilna in 1908, led by Piłsudski himself. The loot from that single raid (200,812 rubles–or approximately $100,000) was a virtual fortune in contemporary Eastern Europe and equaled the amount 'Bojówki' had looted in the two previous years.