I believe that the artist of this cartoon is trying to show that Americans have forgotten about WWI. And we all know the old saying,"If we do not learn about the mistakes made in history, history is doomed to repeat itself". The artist is, in  a way representing that. Plus! Half of our own M.W.H. Honors class didn't even know who Archduke Ferdinand was, nor did they know that his assassination basically started WWI.
So the artist is not only reminding it's viewers about history, but also teaching! This can been seen by examining the man's long beard, only the old and wise know/ remember this fact in history. Which SHOULD NOT BE THE CASE!!!!!!!!! Personally I think that you cannot be considered an American if you don't know diddly squat about American history.
I think this is a great comic to show that American citizens NEED to know more about their nations history. Without this knowledge in most of the countries population we are worthless! what's the point in having pride in a country that you don't know crap about!!!!!!!!!
*** that is why every American citizen should take Maz's class***
*With Mr.Strawder's assistance of course*