 Nyorai kupfuurira kweiyi ndima - VaLeft SR vakasiya mubatanidzwa wavo nemaBolshevik muna Chikunguru 1918 vachipokana nekusainwa kweBrest-Litovsk Treaty mwedzi mitatu yapfuura. Kumukira vaBolsheviknevatungamiriri veLeft SRs zvakaguma nokusungwa pakarepo kwenhengo zhinji dzebato racho. Vazhinji veLeft SRs avo vaipikisa kumukira vakasunungurwa zvishoma nezvishoma uye vakabvumidzwa kuchengeta zvinzvimbo zvavo zvehurumende, asi vakatadza kuronga hurongwa hutsva hwepakati uye zvishoma nezvishoma vakapatsanuka kuita mapato mazhinji anotsigira maBolshevik, ayo anozopedzisira asanganiswa neRussian Communist Party maBolshevik muna 1921. VaRight SRs vakatsigira vachena munguva yeRussian Civil War ya19171922, asi hutungamiri hwevaWhite anti-socialist hutungamiri hwakaramba huchiwedzera uye pakupedzisira hwakavachenesa. Chasara chiduku cheRight-SR, chichiri kuzvidana kuti Socialist Revolutionary Party, chakaramba chichishanda murenje kubva muna 1923 kusvika muna 1940 senhengo yeLabour and Socialist International. 