 Kunyange zvazvo Bulgaria, yakabatana neGermany, Austria-Hungary neOttomans, yakawana kukunda kwechiuto pamusoro peSerbia neRomania, ichitora chikamu chikuru cheMakedhonia kutora Skopje muna October, ichifambira mberi kupinda muGreek Macedonia, uye kutora Dobruja kubva kuRomanians muna September 1916, hondo yakakurumidza kuva isingafarirwi nevakawanda vevanhu veBulgaria, avo vakatambura nhamo huru dzezvemari uyewo havana kuda kurwisana nevaKristu vavo veOrthodox vakabatana nevaMuslim veOttoman. Mutungamiriri weAgrarian Party, Aleksandar Stamboliyski, akaiswa mutorongo nokuda kwokupikisa kwake hondo. Shanduko yeRussiaKurwisana kwaFebruary 1917 kwakava nomuuyo mukuru muBulgaria, kuchiparadzira mirangariro yokurwisana nehondo uye yokurwisana namadzimambo pakati pamauto nomumaguta. Nhengo dzemapato ezvamatongerwe enyika muBulgaria dzakakura zvikuru. Zvisinei, vezvematongerwe enyika muBulgaria vakanga vakakamukana zvikuru mupfungwa. Rimwe boka rakatsvaka kushanda nemamwe mapato ezvematongerwe enyika aimiririra mamwe mapoka kuitira kuti ribudirire mukuunza chinjo muBulgaria. Nemhaka yemaonero avo akafara iri boka ravaSoshalist raizivikanwa sevakafara. Boka rechipiri ravaSoshalist muBulgaria rakanga rakachena uye rakaramba kushanda nemapato emakirasi akasiyana. Dzainzi nzvimbo dzakatetepa. Pakupedzisira, mapato makuru akazviumba kuva Bato reBulgarian Social Democratic Party uye mapato maduku akava Bato reCommunist reBulgaria. 