The 104th Infantry Division was an infantry division of the United States Army. Today, it is known as the 104th Training Division (Leader Training) and based at Fort Lewis, Washington, as a training unit of the United States Army Reserve. Activated in 1921 and deployed during World War II, the division saw almost 200 days of fighting in northwestern Europe as it fought through France, Netherlands, Belgium, and western Germany, fighting back several fierce German counterattacks as it advanced through the theater throughout late 1944 and 1945. This was the only combat duty that the 104th Infantry Division has served during its history. At the end of the fighting on 7 May 1945 (V-E Day), this division was in central Germany opposite the troops of its allies from the Soviet Army. After World War II, this division was reorganized primarily as a training division for Reserve forces. After several decades, the division then expanded its role to conducting entry-level training for soldiers of all branches of the Army in the northwestern United States. Its role and size have expanded over that time due to the consolidation of other training commands, and the division subsequently took charge of a number of brigades specializing in various entry-level training for soldiers of all types. History Interwar period The 104th Infantry Division was first constituted on 24 June 1921 as the 104th Division, before being organized and activated in October of that year in Salt Lake City, Utah. Assigned to the division were the 207th and 208th Infantry Brigades, containing the 413th, 414th, 415th, and 416th Infantry Regiments. As a unit of the Organized Reserves, the division's subordinate units were spread among the states of Idaho, Montana, Nevada, Utah, and Wyoming. In 1924 it received its shoulder sleeve insignia. Populated mostly with officers through the Reserve Officers Training Corps from colleges and universities in its allotted states, the division remained basically an officer cadre with few enlisted men, and would not see significant duty until World War II. World War II At the outbreak of World War II, the 104th Infantry Division began preparing to participate in the war in Europe. The division was ordered into active military service on 15 September 1942 under the command of Major General Gilbert R. Cook, and was reorganized as the 104th Infantry Division at Camp Adair, Oregon. The 207th and 208th Infantry Brigades did not reactivate as