It's a bit of an arbitrary one. I'm inclined to include it simply because there isn't much (that stops within Belgium) that is more Intercity-like, and since the aim of my list is to include the oldest IC stock operating domestic and international services in each country.
Charleroi-Antwerp is only 55 miles as the crow flies, but those services are genuinely more limited-stop than the stoppers that also run on the respective routes.
Charleroi-Antwerp is only 55 miles as the crow flies, but those services are genuinely more limited-stop than the stoppers that also run on the respective routes.