 Soviet occupation of Bessarabia and northern Bukovina

The Soviet occupation of Bessarabia and northern Bukovina took place from June, 28 to July 4, 1940 as a result of the ultimatum given by the Soviet Union to Romania on June 26, 1940 threatening the use of force.Bessarabia was part of the Kingdom of Romania since the time of the Russian Civil War, Bukovina since the dissolution of Austria-Hungary, while Hertza was a district of the Romanian Old Kingdom.