At the time the League of Nations was trying to pursue a policy of multi--lateral reductions in armaments - the very opposite of what Hitler wanted.
Germany withdrew from the league in 1933 on the grounds that the League did not treat them fairly.
The League of Nations
Germany withdrew from the League of Nations on the 19th of September, 1933.
Germany and Japan
Yes, in 1933.
Stresemann negotiated German admission to the League in 1925 (with effect from 1926), and Hitler pulled Germany out in 1933 as a protest against the disarmament conference in progress at the time.
World news events from 1933 include Japan and Germany withdrawing from the League of Nations. Also in 1933, Hitler became the Chancellor of Germany.
There was no such thing as the United Nations. You are confusing the League of Nations with the UN. Germany was in the League for a short time in the 1920's but withdrew in 1933 when Hitler became Chancellor.
It was implicit when he pulled Germany out of the League of Nations in 1933.
October 1933
At the time the League of Nations was trying to pursue a policy of multi--lateral reductions in armaments - the very opposite of what Hitler wanted.
Doing nothing. Germany had left in 1933. Action was down to Europe's powers. They did nothing too.