Famosa invasione degli orsi in Sicilia

This book should be widely read. Why is this the first I've heard of The Bears' Famous Invasion of Sicily?

A baby bear is kidnapped by the humans and the bears retaliate by going to war against people. The bears win. But as the bears rule the humans, the bears begin to take on the humans' worst characteristics.

A very clever story, beautifully told, beautifully illustrated.