The U.S. Navy Seabees, officially known as the Naval Construction Battalions, are specialized units of the United States Navy responsible for providing construction and engineering support to military operations worldwide. Here are some key points about the U.S. Navy Seabees:

1. Origin: The term "Seabee" is a phonetic rendering of the initials "CB," which stands for "Construction Battalion." The Seabees were established during World War II to address the need for skilled construction workers and engineers in combat zones.

2. Mission: The primary mission of the Seabees is to support naval and joint forces by providing construction, engineering, and infrastructure development capabilities in both peacetime and during times of conflict. They are known for their motto: "We Build, We Fight."

3. Capabilities: Seabees are trained and equipped to handle a wide range of construction tasks, including building and repairing airfields, roads, bridges, ports, facilities, and defensive structures. They also provide disaster relief and humanitarian assistance in response to natural disasters.

4. Organization: Seabee units are organized into battalions, regiments, and brigades, each with specialized capabilities. They are typically assigned to Naval Construction Force (NCF) commands.

5. History: Seabees have a storied history, dating back to their formation in World War II. They played critical roles in various conflicts, including World War II, the Korean War, the Vietnam War, the Gulf War, and the wars in Iraq and Afghanistan.

6. Training: Seabees undergo extensive training in construction skills, engineering, and military tactics. They are capable of operating in austere environments and under combat conditions.

7. Combat Operations: Seabees are not only skilled builders but are also trained for self-defense and combat. They have occasionally been called upon to defend their construction projects or support other military units in combat zones.

8. Awards and Honors: Seabees have received numerous awards and commendations for their service, including combat decorations such as the Navy Combat Action Ribbon.