Luxembourg was guaranteed independence and neutrality from its three surrounding neighbors (Belgium, France, and Prussia), but it rejoined the German customs union, the Zollverein, and remained a member until its dissolution in 1919.
Luksemburgile garanteerisid sõltumatust ja neutraliteeti tema kolm naabrit (Belgia, Prantsusmaa ja Preisimaa), kuid ta taasühines Saksa tolliliiduga ja jäi liikmeks kuni 1919. aastani.