During the 1920's this nation established a good relationship with Russia/USSR: O Japan
O Poland
O France
O Germany

Germany

Germany fought against Russia in World War I (1914–1918). Relations were warm in the 1920s, very cold in the 1930s, friendly in 1939–41,[2] and then turned into war to the death in 1941–45. In the 1920s both countries co-operated with each other in trade and (secretly) in military affairs.

It’s actually still in the u.s.