The 25th Field Artillery Regiment is a field artillery regiment of the United States Army, first constituted 5 July 1918 in the National Army (USA). Although the regiment did not see action during World War I, elements participated in World War II, Vietnam, the Gulf War, and the Global War on Terrorism. Currently the regiment has two active battalions, both of which are towed light artillery units equipped with the M119A2 105mm Howitzer. The 4th Battalion is assigned to the 3rd Brigade Combat Team, 10th Mountain Division at Fort Drum, New York, and the 5th Battalion is assigned to the 4th Brigade Combat Team, 10th Mountain Division at Fort Polk, Louisiana.