Originally Posted by
CDTraveler
<...> i.e. sites related to the two world wars.
You could go
here (Musée de la Grande Guerre). (To be clear: "la Grande Guerre" is WW1.)
But with only 14 hours in Paris I'm not sure if you'll find it worth going to Meaux and back. But the train to go there leaves from Gare de l'Est, next to the Gare du Nord.
And in Paris, part of the
Musée de l'Armée is dedicated to WW1 and WW2.