<prompt> Qedela umusho olandelayo: I-IMRO yayiyi-state within the state esifundeni ngawo-1920s iyisebenzisa ukuqala ukuhlasela ezingxenyeni zaseSerbia naseGrisi eMacedonia. Ngaleso sikhathi i-IMRO yayisibe yinhlangano yama-Ultranationalist yaseBulgaria. Ngokusho kwezibalo ze-IMRO ngeminyaka yo-1920 esifundeni saseYugoslav Vardar eMacedonia kwakusebenza ama-chetas angama-53, angama-36 awo angena evela eBulgaria, ayi-12 ayesendaweni futhi ama-5 angena evela e-Albania. Esifundeni saseGreek Aegean eMacedonia ama-chetas angama-24 namaqembu ayi-10 okuhlola asendaweni ayesebenza. Izinkulungwane zabantu baseMakedoniya abakhuluma isiSlavonic bacindezelwa yiziphathimandla zaseYugoslavia naseGrisi ngokusolwa ngokuxhumana nenhlangano yoguquko. Abantu basePirin Macedonia bahlanganiswa baba umbutho omkhulu wabantu abavikela umuzi. Le militia kwakuwukuphela kwebutho, elalimelana nebutho lamaGrikhi lapho uJenene Pangalos eqala umkhankaso wezempi ngokumelene nesiFunda sasePetrich ngo-1925, ngokuqagela wabiza iMpi Yezinja Ezilahlekile. Ukubulala nokubulawa kwabangane njalo kwe-IMRO phesheya kwabangela abanye phakathi kwebutho laseBulgaria ngemva kokushaywa  <response>: ngo-May 19, 1934 ukuze athathe izintambo futhi aphule amandla enhlangano. Phakathi naleso sikhathi, uhlangothi lwesobunxele kamuva lwakha inhlangano entsha esekelwe ezimisweni zokuzimela nokuhlanganiswa kweMakedoniya ehlukanisiwe. Inhlangano entsha eyayiphikisana ne-IMRO ka-Ivan Mihailov yayibizwa ngokuthi i-IMRO United. Yasungulwa ngo-1925 eVienna. Kodwa-ke, yayingenakho ukwesekwa kwangempela kwabantu futhi yahlala isebenza kuze kube ngu-1936 futhi yaxhaswa ngemali futhi ihlobene kakhulu neComintern kanye neBalkan Communist Federation. Ngo-1934 iComintern yamukela isinqumo mayelana nokuqashelwa kwesizwe saseMacedonia futhi yaqinisekisa iphrojekthi yeBalkan Communist Federation mayelana nokwakhiwa kweBalkan Federative Republic, kubandakanya neMakedoniya. 