 SMS Körös was the name ship of the Körös @-@ class river monitors built for the Austro @-@ Hungarian Navy . Completed in 1892 , the ship was part of the Danube Flotilla , and fought various Allied forces from Belgrade down the Danube to the Black Sea during World War I. After the war , she was transferred to the newly created Kingdom of Serbs , Croats and Slovenes ( later Yugoslavia ) , and renamed Morava . She remained in service throughout the interwar period , although budget restrictions meant she was not always in full commission . 
