U.S. Navy Seabees are preparing for a nuclear or chemical attack

The U.S. Naval Construction Battalion, better known as the Seabees, participate in the annual field training exercise Operation Bearing Duel. Their nickname is a heterograph of the initials “C.B.” from the words Construction Battalion.

According to a Navy news release, Seabees assigned to Naval Mobile Construction Battalion (NMCB) 3 participated in a successful Field Training Exercise (FTX) at Fort Hunter Liggett, Calif.

FTX is intended to test the battalions mission readiness and small unit leadership by using real-time training including chemical, biological and radiological attacks, improvised explosive devices and the use of guerrilla tactics during attacks on the battalion.

- ADVERTISEMENT - CONTINUE READING BELOW -

Chemical, biological, radiological, and nuclear (CBRN) decontamination is the removal of CBRN material from equipment or humans. The objective of the decontamination is to reduce radiation burden, salvage equipment, and materials, remove loose CBRN contaminants, and fix the remaining in place in preparation for protective storage or permanent disposal work activities.

Decontamination may be carried out using chemical, electrochemical, and mechanical means. Like materials, humans may also be contaminated with CBRN contamination. Changes in cellular function can occur at lower radiation doses and exposure to chemicals. At high dose, cell death may take place. Therefore, decontamination of humans while generating bare minimum waste is an enormous task requiring dedication of large number of personnel and large amount of time.

The battalion is conducted Operation Bearing Duel FTX that prepares and tests the battalion’s ability to enter a hostile location, build assigned construction projects and defend against enemy attacks using realistic scenarios while being evaluated by Naval Construction Group 1.

Photo by Michael J Lopez
Photo by Michael J Lopez

Readers who wish to follow our weekly coverage can subscribe to the Weekly Defense Roundup.

If you wish to report a grammatical or factual error in this article, please let us know by using the online form.

Executive Editor
  • In this story
  • USA

Support The Defence Blog

Independent reporting takes resources. Join us on Patreon.

Become a patron

More Like This

X-Bow pushes rocket motor output past 1,100 units

X-Bow Systems said Monday it has delivered more than 1,100 solid rocket motors, a sharp production milestone for a U.S. defense market trying to...

U.S. Navy tests 3D-printed fix to get fighter jets flying faster

Engineers at the Naval Air Warfare Center Aircraft Division and Fleet Readiness Center Southwest built a 3D-printing method that lets sailors repair cracked composite...

Colorado engineers tapped to help design U.S. Air Force’s rocket cargo system

A two-person engineering firm in a small Colorado town just picked up a $4.3 million contract to help the Air Force answer a question...

U.S. Space Force funds system that warns troops about incoming missiles

Northrop Grumman secured a $49 million contract from U.S. Space Systems Command to provide sustainment services for the Joint Tactical Ground Station, a network...

Boeing wins $50M to extend AGM-86 nuclear cruise missile

Boeing secured a $49.5 million contract from the Air Force Nuclear Weapons Center on June 30, 2026, to remanufacture the electronic flight controllers and...