EntityQ117287· pop 8· linked from 11 articlesOperation OttoSign in to saveNazi planning to invade the Soviet unionConnectionsAdolf HitlerPersonNapoleonPersonSoviet UnionConceptNazi GermanyConceptInternational Standard Book NumberEntityAustria–HungaryEntityWayback MachineEntityRed ArmyEntityOperation BarbarossaEntityFrench invasion of RussiaEntityAnschlussEntityOtto von HabsburgEntityGreat Soviet EncyclopediaEntityImperial Russian ArmyEntityOberkommando des HeeresEntityJohn TolandEntityCategoriesBattles and operations of the European theatre of World War IICancelled or proposed invasions of Austria