The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a transcontinental country that spanned much of Eurasia from 1922 to 1991...

The Union of Soviet Socialist Republics (USSR) was dissolved on 26 December 1991 by Declaration № 142-Н of the Soviet of the Republics of the Supreme...

Барбаросса, romanized: Operatsiya Barbarossa) was the invasion of the Soviet Union by Nazi Germany and many of its Axis allies, starting on Sunday, 22 June...

administrative units of the Union of Soviet Socialist Republics (USSR). The Soviet Union was formed in 1922 by a treaty between the Soviet republics of Byelorussia...

The economy of the Soviet Union was based on state ownership of the means of production, collective farming, and industrial manufacturing. An administrative-command...

During its 69-year history, the Soviet Union usually had a de facto leader who would not necessarily be head of state or even head of government but would...

The State Flag of the Union of Soviet Socialist Republics (Russian: Госуда́рственный флаг Сою́за Сове́тских Социалисти́ческих Респу́блик Gosudárstvenny...

Rank insignias of Marshal of the Soviet Union Marshal of the Soviet Union (Russian: Маршал Советского Союза, romanized: Marshal sovetskogo soyuza, pronounced...

of Soviet Russia and the Soviet Union (USSR) reflects a period of change for both Russia and the world. Though the terms "Soviet Russia" and "Soviet Union"...

conflict of the Cold War as it saw extensive fighting between the DRA, the Soviet Union and allied paramilitary groups against the Afghan mujahideen and their...