Joint Soviet-Czechoslovak publication of documents and materials on the history of Soviet-Czechoslovak relations in 1917-1945 aims to document the key issues of Soviet-Czechoslovak relations and relations in the specified period in their entirety, i.e. relations of state, diplomatic, socio-political, economic, military and cultural. The first volume covers the period from November 1917 to August 1922, i.e. from the Great October Socialist Revolution to the signing of the Provisional Treaty between the RSFSR and the Ukrainian SSR and the Czechoslovak Republic inclusive.