The assassination of Franz Ferdinand is what started WW1, which was done by Serbian rebels, but the county was Austria-Hungary. The two nations that escalated the conflict was Russia, who supported Serbia, and Germany, who supported Austria.
It was ETHIOPIA.
The event you're looking for was the <span>Second Italo-Ethiopian War that took place </span>3 October 1935 – May 1936. The war resulted in Italian victory.
By encouraging states to establish agriculture schools