As previously reported, hostilities broke out with Italy on 12th January, 1940. The initial fighting, and Britian’s first land battles of the war, happened in a small pocket of Italian-held land in British-dominated East Africa: a pocket called Ethiopia.
The other big event of 1936-39 is the Spanish Civil War, of course. Although it is surely destined to go down as a footnote to the history of the great war to come, it is nevertheless a bloody, brutal and destructive affair. It is unlikely that the winner (if there can be such a thing as a “winner” in a conflict such as this) will be taking part in European affairs for the foreseeable future.