CBU-419

CBU-419, formally known as Construction Battalion Unit 419, was a United States Navy Seabee unit activated during World War II. Established in 1943, CBU-419 specialized in advanced base construction, airfield repairs, and logistical support in the Pacific Theater. The unit played a crucial role in the rapid development of infrastructure on strategically important islands, enabling sustained naval and air operations. After the war, CBU-419 was decommissioned as part of the post-war drawdown of Seabee units.