In October 1917, at the request of the Italian Supreme Commander, General Luigi Cadorna, the Tenth Army moved onto the Italian Front alongside British Expeditionary Force units, together forming the Italian Expeditionary Force.
The deployment of the Tenth Army in October 1917 was prompted by a request from Italian Supreme Commander General Luigi Cadorna to join forces with British troops on the Italian Front, ultimately leading to the creation of the Italian Expeditionary Force.