Union of Soviet Socialist Republics USSR HD flag. The flag with the hammer and sickle on a background of green trees. May day demonstration. Parade in

- Image ID: P7FH0N
Dmitrii Melnikov / Alamy Stock Photo
Image ID: P7FH0N
Union of Soviet Socialist Republics USSR HD flag. The flag with the hammer and sickle on a background of green trees. May day demonstration. Parade in honor of victory day. great October revolution