The 5th Alpine Division "Pusteria" (Italian: 5ª Divisione alpina "Pusteria") was a division of the Royal Italian Army during World War II, which specialized in mountain warfare. The Alpini are a mountain infantry corps of the Italian Army, that distinguished itself in combat during World War I and World War II. The division was formed in 1935 and based in the Puster Valley (Italian: Val Pusteria), which gave the division its name.