What is Belgiums biggest strength? Biggest weakness?

To me the weaknesses start with the fact that they don't have any fullbacks.

Literally Vanden Borre is the only natural FB on the roster and now he's hurt (probably wouldn't have played anyway). Vertonghen's not bad at LB, but a good LB that's capable of getting up and down and overlapping would really open things up for Hazard.

The central midfielders aren't in great form, overall.

Dembele is borderline a shadow of what he was two years ago. Not sure exactly what happened to him, but the guy that could just ghost past whoever he wanted to seemingly is gone. As a Fulham fan, I've seen him play a huge amount of games, and his explosiveness is just not there.

Fellaini obviously had a rough club year, but his ability on set pieces still worries me.

Witsel might be the least well-known of the central midfielders, but he's probably the best.

Third weakness for me is just that Lukaku just seems totally out of it. I wouldn't be shocked if he didn't even play against us.

The strengths are the attacking midfielders, Courtois, and the center backs (assuming Kompany is healthy, even if he's maybe a bit overrated on here).