Around the two Italo-Ethiopian wars, did any Ethiopian leaders side with the Italians?
By "around", I mean anywhere from about 1890 to 1936.
By "leaders", I mean noblemen, military officers, popular leaders, government officials, etc.
Haile Selassie Gugsa (second from right), a military commander and governor of Eastern Tigray, turned coat just a week into the invasion. After the war he was sentenced to death (commuted to life imprisonment and later house arrest.)