2nd Brigade, 78th Division (Training Support)
[ex- 174th Infantry Brigade]

The 2nd Brigade, 78th Division (Training Support) transitioned from the 174th Infantry Brigade to its current designation. The change restructured active component support to reserve component units, reflecting the Army's increased reliance on reserve forces, transitioning to a fully integrated multi-component organization.

2nd Brigade, 78th Division (Training Support) provides training assistance, support, and evaluation to priority Reserve Component units and all other units within capabilities. Synchronize training support within area of responsibility in order to enhance individual and unit readiness to meet directed mobilization and/or wartime requirements. On order, activate or augment Mobilization Assistance Teams (MAT) to assist installation commanders in post-mobilization training and validation of mobilized units for deployment. On order, deploy a Defense Coordinating Officer (DCO) and/or a Defense Coordinating Element (DCE) to coordinate Military Support to Civilian Authorities (MSCA) during federal disaster response operations. Provide command and control of subordinate units.

The 1-174th Infantry Brigade executes lane training, Situational Training Exercises (STXs), and UMTS at selected Inactive Duty Training (IDT) and Annual Training (AT) sites to increase Force Support Package, Enhanced Brigade, Latest Arrival Date Less Than 30 Forces (LAD <30) and other designated units pre-mobilization training readiness. On order, the 1-174th conducts post-mobilization training for selected Reserve Component units, and provides augmentation to Military Support to Civilian Authorities (MSCA) in support of the Federal Response Team.

The 174th Infantry Brigade Observer/Controller-Trainer (O/C-T) Certification Program is an internal program conducted at brigade and battalion levels. The program maintains 10 percent of CTC O/C academy graduates to ensure that personnel are current on O/C methods. The NCOs are also subjected to a Mobile Training Team (MTT) at Fort Drum administered by the Infantry Training Center at Fort Benning, GA. NCOs must prove their knowledge in basic and advanced Infantry tactics through the Infantry Tactics Certification Course and a yearly examination.

Constituted 5 August 1917 in the National Army as the 303d Ammunition Train and assigned to the 78th Division. Organized in December 1917 at Camp Dix, New Jersey. Demobilized 23 May 1919 at Camp Dix, New Jersey. Reconstituted 23 October 1936 in the Organized Reserves; concurrently consolidated with the 303d Ammunition Train (Organized in November 1921 in the Organized Reserves with Headquarters at Jersey City, New Jersey) and consolidated unit designated as the 303d Ammunition Train, an element of the 78th Division. Converted and redesignated 20 February 1942 as the 903d Field Artillery Battalion, an element of the 78th Division (Later redesignated as the 78th Infantry Division). Ordered into active military service 15 August 1942 and reorganized at Camp Butner, North Carolina. Inactivated 22-25 April 1946 at Camp Kilmer, New Jersey.

Activated 21 February 1947 at Elizabeth, New Jersey. Organized Reserves redesignated 25 March 1948 as the Organized Reserves Corps; redesignated 9 July 1952 as the Army Reserves. Location of Headquarters changed 18 October 1950 to New Brunswick, New Jersey; on 23 April 1957 to Nixon, New Jersey. Disbanded 1 May 1959 at Nixon, New Jersey.

Headquarters, 903d Field Artillery, reconstituted 24 November 1967 in the Army Reserves as Headquarters, 2nd Brigade, 78th Division (TS). Activated 31 January 1968 at Lodi, New Jersey. Ordered 25 January 1991 into active military service at Lodi, New Jersey; released 31 March 1991 from active military service and reverted to reserve status. Location changed 1 February 1993 to Fort Dix, New Jersey. Reorganized and redesignated 1 October 1993 as Headquarters, 2d Brigade, 78th Division (Exercise). Reorganized and redesignated 17 October 1999 as Headquarters, 2nd Brigade, 78th Division (TS) Fort Drum, New York.