In March 1941 the division and regiment were sent to Libya for the Western Desert campaign, during which both were destroyed in the Second Battle of El Alamein in November 1942.

[2] In 1975 the unit was reformed as 46th Field Artillery Group "Trento" and assigned to the Mechanized Brigade "Gorizia".

[2] During the war the regiment served on the Italian front, where it fought in summer 1915 on Monte Sei Busi, at San Martino del Carso, and at Sdraussina.

In May 1916 the regiment was again at San Martino del Carso and Sdraussina, before moving to Opatje Selo for the Sixth Battle of the Isonzo.

During the Eighth Battle of the Isonzo the regiment was deployed at Nova Vas and Hudi Log.

During the Second Battle of the Piave River in June 1918 the regiment was positioned near Fornaci and Case Ninni.

On 9 December 1940 the British Western Desert Force commenced Operation Compass, which led to the collapse of the Italian 10th Army in Eastern Libya.

The division and its regiments fought in the Western Desert Campaign and participated in the initial Axis counterattack that led to the Siege of Tobruk.

In June 1941 the regiment defended Halfaya Pass and Fort Capuzzo against British forces during Operation Battleaxe.

Due to the losses in men and materiel suffered during the battle and retreat the 46th Artillery Regiment "Trento" merged January 1942 its two groups with 75/27 mod.

In May 1942 the regiment fought in the Battle of Gazala, which resulted in the Axis capture of Tobruk.

The division and its regiments were declared lost due to wartime events on 25 November 1942.

[2][3] On 12 November 1976 the President of the Italian Republic Giovanni Leone assigned with decree 846 the flag and traditions of the 46th Artillery Regiment "Trento" to the group.