19th Battalion (United States Marine Corps)

The 19th Battalion was a temporary training unit of the United States Marine Corps, activated during World War II. It served primarily as a replacement and training battalion, preparing newly recruited Marines for service in combat units deployed overseas. Unlike permanent Marine Corps battalions assigned to specific regiments and divisions, the 19th Battalion's mission was focused on basic infantry training and specialized instruction, ensuring Marines were adequately prepared for the rigors of war before joining combat formations.

Specific details about the 19th Battalion, such as its exact activation and deactivation dates, specific training curricula, and locations of operation, are limited in readily available historical records. However, its existence and function are confirmed within the context of the Marine Corps' rapid expansion and training needs during World War II. It likely served alongside other training battalions at recruit depots and training centers like Parris Island and San Diego, and at Camp Lejeune. The unit was likely demobilized at the end of World War II as the need for large-scale replacement training diminished. Further research within Marine Corps historical archives may reveal more granular details regarding the unit's service and activities.