In World War II, Japan and the European Axis powers had to communicate over strategy and other things. Also, their diplomats must have had to go to their own countries sometimes. After the USSR ...
Argentina was a founding member of the League of Nations. However, Argentina left in 1921 when an Argentine resolution was rejected. Why, and through what procedure (if any), was Argentina allowed to ...
Here's a detailed description of ambassador Neville Henderson being received by the foreign ministry in Berlin in 1939. Perhaps the most famous example. He came in looking very serious, shook ...