Ku sii qor faqradan - Sannadkii 1937-dii, Trotskyists-kii waxaa laga saaray Xisbiga Socialist-ka, ficil taas oo keentay in la dhiso Xisbiga Shaqaalaha ee Socialist-ka (SWP) dhamaadka sanadka. Gudaha SWP, Burnham wuxuu la midoobay Max Shachtman dagaalkii jabhadda ee ku saabsanaa mowqifka jabhadda SWP ee aqlabiyadda, oo uu hogaaminayay James P. Cannon oo uu taageeray Leon Trotsky, isagoo difaacaya Midowga Soofiyeeti oo ah dowlad shaqaale oo xumaatay oo ka soo horjeedda duulaanka imperialism. Shachtman iyo Burnham, gaar ahaan ka dib markii ay arkeen heshiiskii Nazi-Soviet ee 1939 iyo duulaankii taliskii Joseph Stalin ee Poland, Latvia, Lithuania, iyo Estonia, iyo sidoo kale duulaankii Soviet ee Finland
Bishii Nofeembar 1939, wuxuu ku dooday in USSR ay ahayd qaab cusub oo bulsho heer sare ah oo imperialistic ah sidaas darteedna aysan u qalmin xitaa taageerada dhaleeceynta dhaqdhaqaaqa bulshada.