It also seems to rip off from another Stalinist patriotic song, “Shiroka Strana, Moya Rodnaya” (Vast Country, My Homeland)
I believe that was the source for the Interval Signal for Radio Moscow. Any shortwave enthusiast will recognize it immediately......
https://www.youtube.com/watch?v=Rn0pzC5T3GU
I did--I listened to Radio Moscow during the Soviet era.
Vast country, my homeland
Filled with forests, mountains and rivers.
I know of no other country
Where a man would want to breathe.