From 65438 to 0933, with which countries did the Soviet Union sign treaties and join the League of Nations in 1934?

1933, the Soviet Union signed a non-aggression treaty with Poland and Finland. In the same year, the Soviet Union and the United States formally established diplomatic relations. 1In the summer of 934, the Soviet Union signed peace treaties with Czechoslovakia, Romania and Bulgaria respectively, which ensured the security of the southwest border to a certain extent. 1934 In September, the Soviet Union joined the League of Nations, which was a step towards peace.