Yes, indeed it was rare to see this in Luxemburg. It took a lot of work to get things in gear.
Main organisation is handled by the Aces re-enactment group from Holland. I am not engaged myself but know many of this group.
The Allied side only displayed the 28 US INF DIV while the Germans had a mix of units.
Participators came from many countries, like Holland, Belgium, Germany, Poland, Denmark, Sweden and even Switserland.
Interested people for this year's edition may keep an eye at: