PHIB-CB ONE CORONADO CALIF.

• Origins of PHIB-CB ONE: PHIB-CB ONE stands for Amphibious Construction Battalion ONE (ACB-1), established in 1943 at Camp Peary, Virginia, to provide construction support for amphibious operations during World War II. • Nickname: The unit is affectionately known as "PHIBCB ONE" or "Acorns" due to their original insignia and their ability to plant the “seed” of infrastructure wherever they land. • Coronado Location: After World War II, PHIBCB ONE was moved to Naval Amphibious Base Coronado, California, which remains their home base to this day. • World War II Service: PHIBCB ONE played a key role in constructing pontoon causeways, docks, and other vital infrastructure during the invasions of Normandy, Iwo Jima, and Okinawa. • Korean War Contributions: The battalion was reactivated and deployed to Korea, supporting amphibious landings and rapid port repair following major operations like the Inchon landing. • Vietnam War Operations: PHIBCB ONE deployed to Vietnam, where they built and maintained ports, ramps, and floating causeways in support of naval and Marine operations. • Innovators in Amphibious Engineering: The unit pioneered the use of pontoon causeways, Rhino ferries, and other expeditionary construction techniques, many of which are still used today. • Humanitarian Missions: PHIBCB ONE has responded to numerous natural disasters, including earthquake and tsunami relief, by rapidly constructing landing zones, piers, and temporary shelters. • Joint Operations: The battalion frequently works with other Navy units, Marines, Army engineers, and international allies during exercises like RIMPAC and Cobra Gold. • Modern-Day Capabilities: Today, PHIBCB ONE supports expeditionary logistics, including the Ship-to-Shore Logistics system, and remains on call for both military operations and disaster relief worldwide.