1st Eng Bn, 1st Nar Div

The 1st Engineer Battalion (1st Eng Bn), part of the 1st Marine Division (1st Mar Div), is one of the oldest and most storied engineer units in the United States Marine Corps. Activated in 1941, the battalion played a crucial role in World War II, supporting amphibious assaults across the Pacific, including at Guadalcanal, Peleliu, and Okinawa. The unit continued its distinguished service during the Korean and Vietnam Wars, providing combat engineering, mobility, and survivability support. In recent decades, the 1st Eng Bn has deployed in support of operations in Iraq and Afghanistan, adapting to modern challenges while upholding its legacy of engineering excellence and battlefield support.