Ethiopia has a reasonably large force when the Italians invaded and were able to cause Italy some trouble, but ultimately the Italians prevailed and conquered Ethiopia.
The Greeks did defeat the Italians and stop their invasion, but did not crush them, and ultimately Germany intervened and gave Italy a victory.
Is there any way Ethiopia could have held off the Italians and remained independent? Is there anyway Greece could not only hold Italy off, but drive them out of Albania, humiliating them?