 On 15 July 1942, the division was ordered into active military service and reorganized at Camp Swift, Texas. The 189th and 190th Infantry Brigades were disbanded as part of an army-wide elimination of infantry brigades. Instead, the division was based around three infantry regiments, the 377th Infantry Regiment, the 378th Infantry Regiment, and the 379th Infantry Regiment. Also assigned to the division were the 358th, 359th, 360th, and 920th Field Artillery Battalions, the 95th Signal Company, the 795th Ordnance Company, the 95th Quartermaster Company, the 95th Reconnaissance Troop, the 320th Engineer Battalion, the 320th Medical Battalion, and the 95th Counter-Intelligence Detachment. Major General Harry L. Twaddle took command of the division, a command he held for its entire duration in World War II, making him one of only eleven generals to do so. The division also received a Shoulder Sleeve Insignia this year. Over the next two years, the division trained extensively in locations throughout the United States.
