ACB-1

• Origins in WWII: Amphibious Construction Battalion ONE (ACB-1) was originally commissioned on 16 August 1943 as the 104th Naval Construction Battalion, before being redesignated as ACB-1 in 1950. • Normandy Landings: Elements that would become ACB-1 participated in the D-Day landings at Normandy, providing vital beachhead construction and logistics support. • Korean War Innovation: ACB-1 pioneered pontoon causeway and pier construction under hostile fire during the Inchon landings in 1950, facilitating rapid offloading of men and material. • Vietnam War Service: From 1965 to 1972, ACB-1 constructed and maintained vital logistics facilities, piers, and causeways throughout South Vietnam, earning several unit commendations. • Port Hueneme Homeport: ACB-1 is based at Naval Base Ventura County, Port Hueneme, California, a historic hub for Navy Seabees and amphibious operations. • Joint Operations: ACB-1 regularly deploys with the U.S. Marine Corps and Army, supporting joint and combined exercises and operations worldwide. • Humanitarian Missions: ACB-1 has provided disaster relief after tsunamis, hurricanes, and earthquakes, including significant work during Operation Unified Assistance after the 2004 Indian Ocean tsunami. • Modular Causeway Systems: ACB-1 specializes in deploying Improved Navy Lighterage Systems (INLS) and modular causeways, enabling logistics over the shore (LOTS) where no port exists. • Decorated Unit: ACB-1 has received multiple awards, including the Navy Unit Commendation, Meritorious Unit Commendation, and various campaign medals for its service in combat and peacetime. • Seabee Legacy: As a Seabee unit, ACB-1’s motto is "We Build, We Fight," reflecting its dual capability to construct critical infrastructure and defend itself in combat zones.