NMCB 133's Runnin' Roos

NMCB 133's Runnin' Roos Sponsor Coordinator:
RP1 Tharp
Signal/Whatsapp: +19046157823
[email protected] The invasion of Iwo Jima began February 19, 1945. on D-Day.

On September 17, 1943, the original Naval Construction Battalion (NCB) 133 was commissioned at Camp Perry, Williamsburg, Virginia. After seven months training at Davisville, Rhode Island; Gulfport, Mississippi; and Port Hueneme, California, NCB One-Thirty-Three was ready for action. The battalion adopted the Kangaroo as its symbolic mascot and “Kangroo Can Do” as its slogan because the first sched

uled deployment was to be to Australia. However, change being inevitable, Naval Air Station, Honolulu, became the first deployment site. One-Thirty-Three was tasked with expanding and improving the air station. The work involved raising the level of the airfield and building seaplane docks, fuel tanks and buildings. The finished airfield became one of the largest and busiest in the Pacific Theater. NCB 133 accompanied the invasion force, with two taskings: to secure the beaches after the first assault troops went ashore and to serve as the shore party maintaining supply lines to the Marines on the forward battle lines. After the invasion began, NCB 133 was tasked with repairing the island’s three bombed-out Japanese airstrips, which were needed as soon as possible for use by Allied bombers. The Kangaroos were ashore by 4p.m. Although the initial landing was relatively easy, the Japanese held their first line of defense and delivered murderous fire from their guns high on Mount Suribachi, and the entire beach was covered by mortar, artillery and machinegun fire from the surrounding hills. The Seabees were in a position even more precarious than the Marines on the front lines; but they took what the enemy threw at them, and carried on the job of establishing and operating supply lines to the fighting men. When the Marines captured the first airstrip, the runway was sufficiently repaired to be used by light observation planes. On the same day, the order came to begin rehabilitating the second airstrip, which as to become the longest in the Western Theater. After the first weeks, work went on day and night on the two airstrips. Until then, Japanese resistance had prevented the men from working after dark. The battalion encountered sniper fire and mortar attack until, and even after, the island was declared secure on March 15. During the 26 day battle for Iwo Jima, 133rd NCB suffered 370 casualties of the initial 875 men who landed. This was the highest number of casualties of any Seabee unit in history. In the five month period the battalion spent on Iwo Jima, over 100,000 tons of rock was crushed, over a million cubic yards of earth moved, 5,900 feet of drainpipe was laid, 4,000 feet of conduit was installed and 725 cubic yards of concrete was placed. As the war drew to an end, the battalion finished its work on Iwo Jima. Shortly thereafter, in December of 1945, with the general reduction in military strength following the end of World War II, NCB 133 was decommissioned. On August 12, 1966, Naval Mobile Construction Battalion (NMCB) 133 was re-commissioned in ceremonies aboard the Naval Construction Battalion Center in Gulfport, Mississippi. With Commander Edward H. Marsh at the helm as Commanding Officer, another proud and quality construction-filled chapter began for the battalion. Since the battalions re-commissioning in 1966, NMCB 133 has played a vital role within the Naval Construction Force (NCF) during the Vietnam War, Operation Enduring Freedom and Operation Iraqi Freedom. NMCB 133 has also provided humanitarian assistance around the world to include Hurricane Katrina relief efforts. For the battalions various contributions within the NCF throughout the years, NMCB 133 has been awarded numerous Atlantic Fleet Best of Type Battle “E” awards. NMCB 133 continues to provide an adaptive and scalable Naval Construction Force ready and capable of executing quality construction in combat or in support of civic action, humanitarian assistance, or disaster recovery.

NMCB 133’s Runnin’ Roos 🦘 are putting their tactical training to the test as they kick off CPX3. Every decision, every m...
08/17/2026

NMCB 133’s Runnin’ Roos 🦘 are putting their tactical training to the test as they kick off CPX3. Every decision, every movement, and every mission matters. Through realistic scenarios, this exercise is sharpening the battalion’s readiness preparing our Seabees for FTX.

NMCB 133's Runnin' Roos🦘 conducted Tactical Combat Casualty Care (TCCC) training, covering the three phases of care: Car...
08/11/2026

NMCB 133's Runnin' Roos🦘 conducted Tactical Combat Casualty Care (TCCC) training, covering the three phases of care: Care Under Fire, Tactical Field Care, and Tactical Evacuation Care. Sailors rehearsed how to move a casualty to cover, assess and prioritize treatment using the MARCH PAWS protocol, document injuries and treatment on a TCCC Casualty Card, and employ and utilize a litter to transport the casualty to an evacuation point.

NMCB 133’s Runnin’ Roos🦘 recently completed their Embark Training Exercise (ETX). BU2 Whipple and BUCA Troncoso are meti...
08/11/2026

NMCB 133’s Runnin’ Roos🦘 recently completed their Embark Training Exercise (ETX). BU2 Whipple and BUCA Troncoso are meticulously processing timber, which will then be assembled by BUCN Munozmercado. This collaborative endeavor aims to construct essential shoring, a critical preparatory measure for ETX operations, ultimately contributing to our readiness for MOX and preparations for CPX3.

Congratulations to our awardees this morning!Awards:BUC Clarke StockerSW2 Ruben NajeraEXW:EO2 Jamie AuthementUT2 Tyler R...
08/05/2026

Congratulations to our awardees this morning!

Awards:
BUC Clarke Stocker
SW2 Ruben Najera

EXW:
EO2 Jamie Authement
UT2 Tyler Romine

🚨🚨 CHIEF RESULTS ARE OUT! 🚨🚨Congratulations to all of our Runnin' Roos🦘 who have been selected as Chief Petty Officers! ...
08/04/2026

🚨🚨 CHIEF RESULTS ARE OUT! 🚨🚨

Congratulations to all of our Runnin' Roos🦘 who have been selected as Chief Petty Officers! We are so glad to be able to celebrate this career milestone with you! Navy Chief, Navy Pride!⚓️

Congratulations to RP1 Tharp on his decision to stay in the Navy!
08/03/2026

Congratulations to RP1 Tharp on his decision to stay in the Navy!

Congratulations to CM2 MarreroGuerra on his decision to stay in the Navy!
07/31/2026

Congratulations to CM2 MarreroGuerra on his decision to stay in the Navy!

Congratulations to our awardees this morning! Awards:BU1 Daniel CrumleyBU2 Peter CastellanosSCW:LT John CorbettLT Devin ...
07/29/2026

Congratulations to our awardees this morning!

Awards:
BU1 Daniel Crumley
BU2 Peter Castellanos

SCW:
LT John Corbett
LT Devin Cowley
SW2 Justufer Raybion

Advancements:
UTCN Hamsen Alvaresflores
SWCN Jakari Bland
UTCN Jacob Crowley
EOCN Samuel Redman

NMCB 133’s Runnin’ Roos🦘 were conducting training for Tactical Tuesday in order to prepare for CPX3. Some of the units o...
07/28/2026

NMCB 133’s Runnin’ Roos🦘 were conducting training for Tactical Tuesday in order to prepare for CPX3. Some of the units of action trained in range cards, fire plans, and camp layout practice. Others also trained in rucking and patrolling to prepare physically for the upcoming events in the field. During the patrol, companies practiced hand signals, enemy contact callouts, and concluded with an exercise in forward bounding. This is just one of the many ways we improve our skills while in home port.

NMCB 133’s Runnin’ Roos🦘 are working hard in the S43 department conducting preventive maintenance and operating CESE in ...
07/27/2026

NMCB 133’s Runnin’ Roos🦘 are working hard in the S43 department conducting preventive maintenance and operating CESE in order to prepare for CPX3!

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Gulfport, MS

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