If they flew into the UK and then travelled by rail/truck they'd pick up their kit from there maybe?Added:
Kitchener Bks, Willich - RE base wksp
Not sure of the names of the dropshort barracks off the B1 in Dortmund, but it was a big complex.
Taunton Bks, Celle and Mercury Bks, Birgelen as per @devexwarrior above.
Francisca Bks, St Tönis - 28 Sig Regt and Belgians
US Army pre-positioned materiel parks in Herongen and Straelen. Never did understand why these were in "our" area.