Babe's time in French Morocco is giving him a chance to refresh his ability to speak the language.
He writes about the boat ride to North Africa and the "thrill" of seeing a Liberator bomber flying overhead.
Babe apparently sent French currency back to his family, too. "The French let their money keep in circulation until it crumples into dust."
Piecing together the life of a soldier from his letters is substantially more difficult than I expected.
It seems I've found the source of APO information I have been looking for.