skos:altLabel | - establishment
- treaty
- founding member
- founding
- 1922 Union Treaty
- Soviet Union was established
- Treaty of Creation
- Treaty on the Creation of the Soviet Union
- Treaty on the Creation of the USSR
- Treaty on the formation of the Soviet Union
- USSR's founding
- agreed to join the union
- announced the creation
- come together to form
- creation of the USSR
- established in December 1922
- formal establishment of the Soviet Union in 1922
- formation treaty
- foundation of the Soviet Union
- founding of the Soviet Union
- proclaimed on 30 December 1922
- the Soviet Union's establishment
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