Sigh, Yes Rosalind and Carugoman are correct. You cannot technically make "Belgian" beer here for the stated reasons, but you can certainly come close with some of the varieties. No other major beer producing country makes beer the way that the Belgians do and the wild yeasts that create the unique taste of some of these beers exist only in Belgium. But, as Carugoman tried, it could be possible to come close.
Or, we can simply make Belgian beer one of our "Gimmees."
Otherwise, you do without. But, life would be very, very sad without a Westamalle Triple. mmmmmm.
Or, we can simply make Belgian beer one of our "Gimmees."