Molotov announces the German attack by radio

The USSR created the Moldavian SSR from most of Bessarabia and the Moldavian Autonomous SSR, while northern Bukovina and parts of Bessarabia were attached to the Ukrainian SSR. The new borders divided...

The USSR formally incorporated Lithuania after its occupation and a controlled political process. Soviet institutions and land, economic, and security policies were imposed amid resistance,...

The USSR formally incorporated Latvia following occupation and a staged political process. The change brought Soviet nationalization, political arrests, and institutional restructuring, while...

The USSR formally incorporated Estonia after occupation and controlled elections. The annexation ended Estonian independence and initiated Soviet restructuring, repression, and nationalization.

Germany launched Operation Barbarossa, opening a war of annihilation across Soviet territory. Occupation, mass shootings, starvation, forced labor, and the Holocaust devastated civilians; Soviet...

The emergency committee concentrated wartime authority in a small body led by Stalin. It coordinated military, industrial, and civilian mobilization, placing the Union’s republics and populations...

The two governments agreed not to conclude a separate peace and to cooperate against Germany. The agreement established an alliance of necessity between states whose earlier political relations had...

The decree accused the Volga German population collectively of potential collaboration and ordered removal to eastern regions. It dissolved the Volga German autonomous republic and uprooted families...

The siege isolated the city from land routes and produced catastrophic hunger, bombardment, and civilian deaths. Residents, including women and children, sustained defense and transport under...

German SS and police units and auxiliaries murdered tens of thousands of Jews over two days at Babyn Yar. Further victims included Roma, Soviet prisoners of war, and others. Later Soviet memorial...