PHIB-CB ONE CORONADO CALIF.

PHIB-CB ONE, short for Amphibious Construction Battalion ONE (ACB-1), was established in 1943 during World War II and is based in Coronado, California. The unit played a critical role in supporting amphibious assaults by constructing, operating, and maintaining causeways, pontoon bridges, and beach facilities vital for landing operations. Over the decades, ACB-1 has participated in numerous major military campaigns, including the Pacific campaigns in WWII, the Korean and Vietnam Wars, and various humanitarian and disaster relief missions. Today, PHIB-CB ONE continues to provide specialized engineering and amphibious support to the U.S. Navy and Marine Corps, maintaining readiness for both combat and peacetime operations worldwide.