About this Unit
The 4th Battalion, 10th Marines (4/10), was an artillery battalion of the United States Marine Corps, activated during World War II. Formed in 1941, 4/10th Marines provided vital fire support for the 2nd Marine Division in key Pacific campaigns, including the battles of Tarawa, Saipan, Tinian, and Okinawa. The battalion’s accurate and sustained artillery fire played a crucial role in the success of amphibious assaults against heavily fortified Japanese positions. After the war, 4/10th Marines was deactivated in 1945, but its legacy endures as part of the proud history of Marine Corps artillery.
Historical Facts
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Unit Origins: The 4th Battalion, 10th Marines (4/10) was originally activated during World War II on March 11, 1941 at San Diego, California.
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World War II Service: 4/10th Marines participated in several major campaigns, including the battles of Guadalcanal, Tarawa, Saipan, Tinian, and Okinawa, providing crucial artillery support.
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Nickname: The battalion has been nicknamed the “Thunder Battalion” due to its prowess and effectiveness in delivering artillery fire.
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Deactivation and Reactivation: 4/10 was deactivated after World War II in November 1945, but has since been reactivated several times as part of the Marine Corps Reserve.
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Cold War Role: During the Cold War, the unit was prepared for rapid deployment in case of a global conflict, serving as a key artillery force for the Marine Corps.
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Reserve Component: In the modern era, 4/10th Marines has functioned primarily as a reserve artillery battalion, training and supporting active duty operations as needed.
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Equipment Evolution: Over the decades, the battalion has used a variety of artillery pieces, from the World War II-era 75mm pack howitzers to the modern M777 155mm howitzer.
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Community Engagement: The battalion has a long tradition of community involvement, participating in disaster relief, Toys for Tots, and other civic activities across its reserve locations.
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Integration with Active Duty: 4/10th Marines has regularly augmented active duty Marine units during major exercises and deployments, including support during Operation Desert Storm and the Global War on Terror.
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Legacy and Honors: The battalion and its Marines have earned numerous unit citations and individual decorations for valor and service, reflecting a proud legacy within the 10th Marine Regiment and the broader Marine Corps.
