The 53rd Infantry Division "Arezzo" (Italian: 53ª Divisione di fanteria "Arezzo" [aˈrɛttso] ) was a infantry division of the Royal Italian Army during World War II. The Arezzo was classified as a mountain infantry division, which meant that the division's artillery was moved by pack mules instead of the horse-drawn carriages of line infantry divisions. Italy's real mountain warfare divisions were the six alpine divisions manned by Alpini mountain troops.