The reason is very simple - profit.
The rabbits were not worth much to the Europeans, but were to the Aztecs, but the cocoa beans for the Europeans were like gold. They were a very attractive exotic product from which unique and unseen things were made. In the European market the cocoa beans had enormous price, and the demand for it was very high especially from the aristocracy which loved it and didn't speared money for it.
For starters Japan was an ally and Germany was an enemy so it was a lot better than Germany was because it wasn't destroyed. Japan was granted a membership in the League of Nations and although China was also an ally, Japan got control of German territories in some Chinese provinces.
<span>absentee landlords charged high rent, had to pay tithes to the Church of England
</span><span>ending Irish tithes, eased hardships of tenant farmers</span>
