Tsakanin 1878 zuwa 1914 ya kasance na kwanciyar hankali da ci gaba ga Romania.A lokacin yakin Balkan na biyu , Romania ta shiga Girka , Serbia da Montenegro da Bulgaria .Bulgeriya, ba ta gamsu da rabonta na ganimar yakin Balkan na farko, ta kai wa tsoffin kawayenta, Serbia da Girka hari, a ranar 29 ga watan Yuni - 10 ga Agusta 1913. Sojojin Serbia da na Girka sun fatattaki harin da Bulgaria suka kai musu inda suka shiga Bulgaria.Tare da Bulgaria ma a baya sun shiga rikicin yanki tare da Romania ^[77] da kuma yawancin sojojin Bulgaria da suka tsunduma a kudu, fatan samun nasara cikin sauki ya tunzura Romanian shiga tsakani a kan Bulgaria.Daular Usmaniyya ta kuma yi amfani da wannan damar wajen maido da wasu yankuna da suka bata daga yakin baya.A lokacin da sojojin Romania suka tunkari Sofia babban birnin kasar, Bulgaria ta nemi da a ba da makamai, wanda ya haifar da yerjejeniyar Bucharest, inda Bulgariya ta mika wani kaso na ribar yakin Balkan na farko ga Serbia, Girka da Romania.A cikin yarjejeniyar Bucharest na 1913, Romania ta sami Kudancin Dobruja kuma ta kafa gundumomin Durostor da Caliacra.^[78]