Above: a screen capture from WE HAVE MET THE ENEMY AND HE IS US.
A big hat tip to Journalista via Steve Hogan: a 1970 POGO animated show, put together by Mr. Kelly and his wife Selby, titled WE HAVE MET THE ENEMY AND HE IS US. Kelly animated the project, but was in poor health and unable to complete it. This is one of those things you hear about, but never expect to see. For now, it has been posted in 2 parts on YouTube: Part One and Part Two.