What is "borbysts"

Borbysts a brief name for the Ukrainian Party of the Left Socialist Revolutionaries. The exact date of establishment of the party is unknown, while its main newspaper "Trudovaya mysl" declared for its appearance for the first time in February–March 1918. Unlike Borotbists, the Ukrainian Party of the Left Socialist Revolutionaries was created out of its Russian counterpart the Left SRs long after the revolution and after the occupation of Ukraine by the Russian Red Guards forces.