Reparations; i.e. what they offered in 1916.
Source for that claim?
See for example what the German ambassador told Wilson:
...restitution of the part of upper Alsace occupied by the French..gaining of a frontier that would protect Germany and Poland economically and strategically against Russia..restitution of German colonies...restitution of those parts of France occupied by Germany under reservation of strategical and economic changes of the frontier and financial compensations...restoration of Belgium under special guaranty for the safety of Germany which would have to be decided on by negotiations with Belgium..economic compensation for territories exchanged and for German business concerns and private persons who suffered by the war..abandonment of all economic agreements and measure which would form an obstacle to normal commerece and intercourse after the conclusion of peace..the freedom of the seas...
ie a German dominated Belgium