4:10th Marines

• Unit Origins: The 4th Battalion, 10th Marines (4/10) was originally activated during World War II on March 11, 1941 at San Diego, California. • 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. • Nickname: The battalion has been nicknamed the “Thunder Battalion” due to its prowess and effectiveness in delivering artillery fire. • 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. • 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. • 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. • 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. • 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. • 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. • 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.