Same in Finland around that era, Russians cannot pronounce the Finnish R sound, so all sign-countersign pairs were chosen to include a prominent R. https://www

Same in Finland around that era, Russians cannot pronounce the Finnish R sound, so all sign-countersign pairs were chosen to include a prominent R. https://www.youtube.com/watch?v=z7_pVrIshxA https://www.youtube.com/watch?v=z7_pVrIshxA https://en.wikipedia.org/wiki/Countersign_(military) https://en.wikipedia.org/wiki/Countersign_(military)