The Soviet occupation of Bessarabia and northern Bukovina

Romania and Hungary would make major contributions to the Axis war against the Soviet Union, in Romania's case partially to recapture territory ceded to the Soviet Union. The Soviet occupation of Bessarabia and northern Bukovina took place during June, 28–July 4, 1940 as a result of the Soviet Union ultimatum given to Romania on June 26, 1940, under the threat of the use of force.