634th BSB

The **634th Brigade Support Battalion (634th BSB)** is a logistics unit within the Illinois Army National Guard, assigned to the 33rd Infantry Brigade Combat Team (IBCT). It was constituted in 2006 as part of the Army’s transformation to modular brigade combat teams, consolidating support functions such as supply, maintenance, and medical services under one battalion. The 634th BSB has supported both state and federal missions, including overseas deployments in support of Operation Iraqi Freedom and Operation Enduring Freedom. The unit continues to provide critical sustainment and logistical support to ensure the operational readiness of the 33rd IBCT in both domestic and international operations.