Ottoman Empire and the Russian Empire, was signed on 28 May 1812, in Bucharest, at the end of the Russo-Turkish War, 1806-1812.In accordance with the treaty ob Bucharest of 1812 Russians extended their empire upto the eastern half of the territory of the principakity of Moldovia along with Khotyn and old Bassarbia (modern Budjak) which was called 'Oblast of Moldovia and Bassarbia". The Western Part of Moldovia ( which is a part of present day Romania) remained an autonomous principality, and in 1859, united with Wallachia to form the Kingdom of Romanias.
The treaty of Paris 1856, returned three countries of Bassarbia - Cahul, Bolgrad, and Ismail - to Moldovia, but in the vtreaty of Berlin !878, the kingdom of Romania agreed to return them to the Russian Empire. Over the 19th cenury Russian authorities enjoyed a vast area under its empire.In 1919, the Bassarbian Soviet Socialist Republic was formed.In aug 1939, the Molotov- ribbentrop pact and its secret additional protocol was signed. by which the Nazy Government acknowledged Bassarbia as a Soviet sphere of influence.
As part of the 1941 Axis invasion of the Soviet union Romania seized the territories of bassarbia,orthern Bukovian, and Transnistria. which the Soviet army recaptured in Feb-aug 1944 and re-established Moldovian SSR.
In 1946, the south -western part of USSR suffered a heavy famine causing 261,000 deaths in 1946-47,
after the death of Stalin, political persecution changed and in1980 conditions were created for perestroika and Glassnostleading to a democratic movement of Moldova. The first democratic election for the local parliament took place in 1990 and Moldova on 27 Aug 1991 Moldova declared independence.