640th RSC

The **640th Regional Support Group (RSG)**, formerly known as the 640th Regional Support Command (RSC), is a United States Army Reserve unit headquartered in Los Alamitos, California. Established in the late 20th century, the 640th RSC has played a crucial role in providing command and control, base operations support, and logistical services to Army units, especially during deployments and mobilizations. The unit's personnel have supported various operations, including missions in the Global War on Terrorism, by managing facilities, transportation, and life-support activities for deployed forces. Over the years, the 640th RSG has earned recognition for its professionalism and adaptability in meeting the evolving needs of the U.S. Army Reserve.