Naval Mobile Construction Battalion 4 - Wikipedia
https://en.wikipedia.org/wiki/Naval_Mobile_Construction_Battalion_4
Naval Mobile Construction Battalion 4 (NMCB 4) is a Navy Seabee battalion homeported at Port Hueneme, California. Nicknamed the "Pioneers", it is the first of the many CBs created after the original three. The battalion's current insignia first appeared on its 1953–55 cruisebook. Part of: 30th Naval Construction Regiment Current commander: CDR Justin Spinks, CEC Size: 600
Part of: 30th Naval Construction Regiment
Current commander: CDR Justin Spinks, CEC
Size: 600
DA: 85 PA: 28 MOZ Rank: 52