During his reign, Carol I personally led Romanian troops during the Russo-Turkish War and assumed command of the Russo/Romanian army during the siege of Plevna. The country achieved internationally recognized independence via the Treaty of Berlin, 1878 and acquired Southern Dobruja from Bulgaria in 1913. Domestic political life was organized around the rival Liberal and Conservative parties. During Carol's reign, Romania's industry and infrastructure were much improved, but the country still had an agrarian-focused economy and the situation of the peasantry failed to improve, leading to a major revolt bloodily suppressed by the authorities.