had finished crossing the Danube.Cristian Crăciunoiu, Romanian navy torpedo boats, Modelism, 2003, pp. 13-18 The Ottoman monitor Seyfi was a 400-ton ironclad warship, with a maximum armor thickness of 76 mm and armed with two 120 mm guns. Another Ottoman monitor, the Podgoriçe, was shelled and sunk by Romanian coastal artillery on 7 November 1877. Aftermath The peace treaty between Russia and the Ottoman Empire was signed at San Stefano, on 3 March 1878. It created a Bulgarian principality and recognized the independence of Serbia, Montenegro, and Romania. The Convention between Russia and Romania, which established the transit of Russian troops through the country, is one by which Russia obliged itself "to maintain and have the political rights of Romanian state observed, such as they result from the internal laws and the existent tratatives and also to defend the present integrity of Romania". The Romanians believe that "defend" in a diplomatic act means recognition of the status-quo set by Congress of Paris of 1856, whereby three counties in Southern Bessarabia (part of Budjak, a region conquered by Turks around the late 15th century and ruled until the late 19th century when it was conquered by Russians) were taken from the Russian Empire, defeated in the Crimean War, and given back to the Romanians in Principality of Moldavia. The Russian Empire never wanted to "maintain and defend" the integrity of Romanian Principality. They wanted to conquer as much as possible from the sick man of Europe, the Black Sea region (control of Danube) all the way to Constantinopole (Dardanelles/Bosphorus) and the Mediterranean Sea. The treaty was not recognised by the Central Powers and the 1878 peace conference in Berlin decided that Russia would give Romania its independence, the territories of Northern Dobruja, the Danube Delta and access to the Black Sea including the ancient port of Tomis, as well as the tiny Snake Island (), but Russia would nevertheless occupy as a so-called "compensation" the old Romanian counties of Southern Bessarabia (Cahul, Bolgrad and Ismail), which by the Treaty of Paris of 1856 (after the Crimean War) were included in Moldavia. Prince Carol was most unhappy by this unfavorable turn of negotiations; he was finally persuaded by Bismarck (in now-published original letters exchanged at that time) to accept this compromise with Russia in view of the great economical potential of Romania's direct access to the Black Sea and its ancient ports