I was in Belgium on this date last year. They take "French" fries very seriously. (as well as the condiments into which they are dipped).
IIRC, the term "French fries" originated during WWI. American soldiers were in/near Belgium, but associated them with France.
The Brits, of course, call them "chips" and they are conduits for malt vinegar. (Potato chips to them are "crisps.")
Strange world.