3-335 Training Support Battalion

3-335 Training Support Battalion Motto: “Á FIN”

U.S. Army Reserve unit located in Chicago’s North-shore suburbs.

The mission: serving as Observer-Coach/Trainers (OC/Ts), supporting the readiness and training of fellow Army units. Our...
07/19/2025

The mission: serving as Observer-Coach/Trainers (OC/Ts), supporting the readiness and training of fellow Army units. Our team brought expertise, professionalism, and dedication to every lane, ensuring units were trained to standard and mission ready. Proud of the hard work and impact made by our Soldiers!

During May Battle Assembly, Blackhawk Soldiers conducted tactical combat casually care (TC3) training to build readiness...
05/04/2025

During May Battle Assembly, Blackhawk Soldiers conducted tactical combat casually care (TC3) training to build readiness as observer controller-trainers (OC-T). We also recognized excellence by our current, along with a former, headquarters company first sergeants.

157th Infantry Brigade
First Army Division East
85th Support Command
308th Civil Affairs Brigade




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During the 85th Army Reserve Support Command’s Battalion Command Team Training, our Blackhawk Command Team recognized se...
04/13/2025

During the 85th Army Reserve Support Command’s Battalion Command Team Training, our Blackhawk Command Team recognized several 85th Soldiers for their excellence. Including Blackhawks alum, Sergeant First Class Ball.







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157th Infantry Brigade
First Army Division East
85th Support Command

During April Battle Assembly, Blackhawk Soldiers conducted lanes, and after action reviews, to sustain our skills as Obs...
04/06/2025

During April Battle Assembly, Blackhawk Soldiers conducted lanes, and after action reviews, to sustain our skills as Observers Controllers/Trainers.

We also recognized the achievement of one of our own who graduated as the distinguished honor graduate from engineer senior leaders course recently.






157th Infantry Brigade
85th Support Command
First Army Division East

During March Battle Assembly, Blackhawk Soldiers conducted driver training, a financial benefits class, along with an as...
03/03/2025

During March Battle Assembly, Blackhawk Soldiers conducted driver training, a financial benefits class, along with an assumption of command ceremony that welcomed Lieutenant Colonel Dan Garcia as our new Blackhawk 6!

157th Infantry Brigade
First Army Division East
85th Support Command

02/05/2025
During February Battle Assembly, Blackhawk Soldiers conducted team-led training. Including classroom-based instruction,...
02/03/2025

During February Battle Assembly, Blackhawk Soldiers conducted team-led training. Including classroom-based instruction, physical readiness training, and night vision training. We also welcomed several newly assigned Soldiers, and promoted one of our non-commissioned officers.





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157th Infantry Brigade
First Army Division East
85th Support Command

During January Battle Assembly, Blackhawk Soldiers conducted Tactical Combat Casualty Care (TC3) training, welcomed one ...
01/06/2025

During January Battle Assembly, Blackhawk Soldiers conducted Tactical Combat Casualty Care (TC3) training, welcomed one of our own into the senior non-commissioned officer ranks, congratulated two mothers on their growing families, and recognized the primary TC3 trainer for an excellent training event.




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157th Infantry Brigade
First Army Division East
85th Support Command

á fin
12/14/2024

á fin

During December Battle Assembly Blackhawk Soldiers, and our families, took time for a Family Day celebration! 🇺🇸 157t...
12/08/2024

During December Battle Assembly Blackhawk Soldiers, and our families, took time for a Family Day celebration!



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157th Infantry Brigade
First Army Division East
85th Support Command

During November Battle Assembly Blackhawk Soldiers were promoted and recognized for their performances. Staff Sergeant B...
11/20/2024

During November Battle Assembly Blackhawk Soldiers were promoted and recognized for their performances. Staff Sergeant Bouziane was promoted by his children, while Staff Sergeant Caffarello was awarded an Army Achievement Medal for graduating Engineer Advanced Leaders Course as the Distinguished Honor Graduate recently. Staff Sergeant Bland was presented a command coin for excellence during last month’s Army Combat Fitness Test.

157th Infantry Brigade
First Army Division East
85th Support Command





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Address

North Shore Army Reserve Center
Lake Forest, IL
60045

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+17195162434

Website

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Our Mission

3-335th Training Support Battalion (TSBn) observes, coaches, and trains Combat Support/Combat Service Support Reserve Component Forces during pre and post-mobilization in support of Unified Land Operations through realistic integrated collective training, in accordance with First Army and 157th Combined Arms Training Brigade (CATB) directives. We provide Observer Coach/Trainer capabilities to 157th CATB, First Army in support of eXportable Combat Training Capability (xCTC), Combat Support Training Exercises (CSTX) and at the Mobilization Force Generation Installations (MFGIs). Our Team provides the OC/Ts that have the expertise to support First Army in the training and evaluation of Reserve Component Forces.