September 16, 1942

3d Landing Support Battalion was originally activated as 3d Service Battalion on September 16,1942 at Camp Elliott, San Diego, California. During World War II the battalion took part in combat operations at Bougainville, Northern Solomon's, Guam, and Iwo Jima. Following the war the battalion was deactivated on December 22, 1945 at Guam.

Red Patches

Dates back to WWII during the Battle of Guadalcanal. After the initial assault on the beachhead, follow-on troops came ashore and the confusion on the beach led the landing support Marines and infantry Marines getting mixed together. Some landing support Marines went inland along with infantry battalions, while some infantry Marines were left behind on the beach. 

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