In the first months of 1917 the works were almost complete, but by this time their garrison troops had already been sent to Veneto together with the units of the Territorial Militia. The fortified system then passed under the control of 6 battalions of the Regia Guardia di Finanza. After Caporetto, these 6 battalions were also sent to defend the Piave line and after this the Cadorna Line remained unguarded until the end of the conflict.