4th Combat Engineer Battalion

• World War II Origins: The 4th Combat Engineer Battalion traces its lineage to World War II, where it was originally activated as part of the 4th Marine Division and participated in key Pacific island campaigns. • Iwo Jima Heroics: The battalion played a critical role during the Battle of Iwo Jima, clearing mines, obstacles, and supporting infantry assaults under heavy fire. • Reserve Unit: Today, the 4th Combat Engineer Battalion is a United States Marine Corps Reserve unit, headquartered in Baltimore, Maryland, with companies located in various states. • Versatile Capabilities: The battalion specializes in mobility, counter-mobility, survivability, and general engineering support, including demolition, construction, and route clearance. • Humanitarian Missions: In addition to combat roles, the unit has supported disaster relief and humanitarian missions, including Hurricane Katrina recovery efforts. • Global Deployments: Elements of the 4th CEB have deployed to Iraq and Afghanistan in support of Operation Iraqi Freedom and Operation Enduring Freedom, conducting route clearance and construction. • Annual Training Exercise: The battalion regularly participates in Integrated Training Exercises (ITX) at Marine Corps Air Ground Combat Center Twentynine Palms, California. • Decorations: The unit has earned several commendations, including Presidential Unit Citations and Navy Unit Commendations for its service in World War II and the Global War on Terrorism. • Unit Insignia: The battalion’s insignia features the Marine Corps emblem superimposed on a scarlet and gold engineer castle, symbolizing its dual identity as Marines and engineers. • Community Connection: As a Reserve unit, many of its Marines balance civilian careers with military service, strengthening ties between the Marine Corps and local communities.