1:189th FA

The 1st Battalion, 189th Field Artillery (1/189th FA) is a unit in the Oklahoma Army National Guard with a distinguished legacy. Originating from earlier artillery formations, the battalion traces its roots back to the early 20th century and has served in major conflicts, including World War II and the Global War on Terrorism. The unit has provided critical fire support as part of the 45th Infantry Brigade Combat Team, both in domestic emergencies and during overseas deployments to Iraq and Afghanistan. Today, the 1/189th FA continues its tradition of excellence, maintaining readiness to support both state and federal missions.