The relations between France and Austria at the time of the negotiations leading to the signature of Saint-Germain Treaty reveal the French preoccupations after the demise of Austria-Hungary. The new situation of power vacuum in Central Europe disturbs the traditional French conception: in order to cope with bolshevism on one side, and Germany on the other side, France has to "reinvent" her geopolitical thinking about the region. Stabilizing Austria as well as Hungary is the expression of this necessity.