Катюша - Katyusha but West Circassian (КӀах Псалъэ)

Katyusha has been one of the best-known Russian-language World War II folksy songs all over the world.

West Circassian arrangement: unknown
Music: Matvey Blanter (Матве́й Бла́нтер), 1938.

Background credit: 'In Battle for the Soviet Motherland', by Marat I. Samsonov (1987) on Картины о Великой Отечественной войне (part 2)