The 2nd Mountain Artillery Regiment is an inactive mountain artillery regiment of the Italian Army, which was based in Trento in Trentino. The regiment was formed in 1915 by the Royal Italian Army as 3rd Mountain Artillery Regiment. In World War I the regiment's groups and batteries served on the Italian front.

The Italian Army is the land force branch of the Italian Armed Forces. The army's history dates back to the Italian unification in the 1850s and 1860s. The army fought in colonial engagements in China, Libya, Northern Italy against the Austro-Hungarian Empire during World War I, Abyssinia before World War II and in World War II in Albania, Balkans, North Africa, the Soviet Union, and Italy itself. During the Cold War, the army prepared itself to defend against a Warsaw Pact invasion from the east. Since the end of the Cold War, the army has seen extensive peacekeeping service and combat in Afghanistan and Iraq. Its best-known combat vehicles are the Dardo infantry fighting vehicle, the Centauro tank destroyer and the Ariete tank and among its aircraft the Mangusta attack helicopter, recently deployed in UN missions. The headquarters of the Army General Staff are located in Rome opposite the Quirinal Palace, where the president of Italy resides. The army is an all-volunteer force of active-duty personnel.