All the battalions in the Littorio and Centauro armored divisions started the war with L3s.
The L3/33 saw action in Ethiopia, Spain, France, Greece, Yugoslavia, Albania, Crete, North Africa, Russia, Corsica, Sardinia, Sicily, and Italy.
They were also sold to Afghanistan, Albania, Austria, Bolivia, Brazil, Bulgaria, China, Greece, Hungary, Iraq, Nationalist Spain, and Salvador.
The L3/33s first saw action against Ethiopian tribesman at Ual-Ual in December 1934.
First used the L3/35 in Dec. 1934 against Ethiopians at Ual-Ual in Italian Somaliland.
A total of 155 were supplied to the Nationalist forces. Two battalions of the L3/35s were sent to Spain to fight with Franco. When returned from Spain they became the basis for the Littorio Armored Division created in May 1940.
The L3/35 was used with Italian troops that fought in Russia.