The German-Belgian border treaty of 1956 cited by the Foreign Office does, however, not contain any indications as to what should happen if the railway facilities mentioned in the contract cease to exist. Therefore, the provisions of the Treaty of Versailles that are not superseded still govern the current borders. Moreover, the option of restoring the railway traffic has not been abandoned and also a bicycle route that has been planned on the former Vennbahn track would not change the borderline.[5]