NSV Liidu ja tema Euroopa liitlaste (Albaania, Bulgaaria, Poola, Rumeenia, Saksa DV, Tšehhoslovakkia, Ungari) sõjaline liit, loodi 1955 vastukaaluks NATO-le
established in 1955 between the Soviet Union and several Eastern European countries, it was seen as a counterbalance to NATO
Hea teada
1968 astus Albaania välja. VLO lagunes 1990–91.
It came to an end in 1991 after the dissolution of the Soviet Union