Since 1930, the division bore sole responsibility for the defense of the Epirus sector of the Greco-Albanian border. Due to the relative military weakness of Albania, the sector was "quiet" and far less vital than the border with Bulgaria. This changed in April 1939, when Fascist Italy invaded and occupied Albania. Under its commander, Maj Gen Charalambos Katsimitros, the division engaged in a feverish activity of constructing fortifications and laying out defensive plans. With the Italian invasion looming from August 1940 onwards, a limited mobilization was carried out, which brought the division up to strength and even allowed for the reconstitution of the 24th Regiment as a separate unit. This fact, combined with Katsimitros' decision to insist on forward defense, would prove decisive factors in the rapid containment of the initial Italian main thrust into Epirus. The division was deployed in a defensive position stretching from the village of Elaia (Kalpaki) to the line of the river Kalamas, and for six days, from November 2 to November 8, successfully repelled the successive attacks by the Italian "Ciamura" Army Corps. By that point, the mobilization of the Greek reserves had been completed, and in conjunction with the Greek victory in the Battle of Pindus, the division's victory at the Battle of Elaia–Kalamas signalled the failure of the Italian attack.