On November 3rd, 1918, Austria-Hungary capitulated in World War I, its territorial concessions allowing Italy to complete its reunification that began way back in the middle of the XIX century. Thus November 4th, the day that the armistice went into effect, is celebrated as National Unity and Armed Forces Day. Italians were celebrating it before Mussolini’s rise to power, during his premiership and after where it’s the only holiday to have remained in effect for the past century.
From November 4th (11:00 GMT) until November 7th (07:00 GMT)
Play 3 battles using Italian vehicles (rank III or higher, with an activity of not less than 70%) to receive the “The Heart of Italy” decal. “The Heart of Italy” decal.
You can find the decal in the “Holidays” tab in the Customisation menu.
Complete the task in random battles, except for Enduring Confrontation missions and [Assault] mode. Track your progress in the hangar by clicking Nickname → Achievements → Holidays → Italian National Unity Day.
During the event the tank destroyer M43 "G.C. Leoncello"[wiki.warthunder.com]
from the Italian research tree will be available for purchase with Golden Eagles. It has durable front armor and a powerful gun that’s able to easily take out your opponents. Just remember to find cover during long reload times! Note: War Thunder anniversary
discounts do not apply to the M43 "G.C. Leoncello".