1st Light Armored Infantry Battalion (1st LAI Bn.) from September 1989 until February 1993. The Battalion was formed in 1985 and originally named the Light Armored Vehicle Battalion (LAV Bn.). Later it was re-designated the Light Armored Infantry Battalion. The 1st LAI Bn. makes it's home on MCB Camp Pendleton, CA. It is part of the 1st Marine Division (1st MARDIV) and is usually deployed as part of a Marine Expeditionary Unit (MEU).