Detachment November

The Unclassified Story of U.S. Navy Seabees in Diplomatic Security

In 1964, as the Cold War raged, a clandestine team of U.S. Navy Seabees embarked on a high-stakes mission in the heart of Moscow. Code-named Detachment November, their mission was to protect American secrets in a hostile land. That mission forged a partnership between the State Department and the Seabees that has safeguarded U.S. personnel and classified information for over 55 years.

Detachment November is the untold story of that partnership—the Naval Support Unit (NSU).

Organized into three riveting parts, this book takes you from the Cold War origins of the NSU to its critical role in today’s escalating global tensions. You’ll meet the highly skilled Seabees who operate in 50 locations worldwide, uncovering their involvement in world-changing events:

The Prague Spring (1968)
The Khartoum assassinations (1973)
The fall of the U.S. Embassy in Tehran (1979)
The Salvadoran Civil War (1979)
The Beirut Bombings (1983-84)
The Dar es Salaam and Nairobi Bombings (1998)
The war zones of Afghanistan and Iraq (2001-Present)

Drawing on exclusive access to classified archives and firsthand accounts from NSU veterans, former NSU Officer in Charge Timothy Dahms reveals the leadership lessons, harrowing experiences, and cultural encounters that have shaped this remarkable unit.

Detachment November is a thrilling journey through history, a testament to the enduring power of partnership, and a tribute to the unsung heroes who work in the shadows to keep America safe.

$28.00
ISBN: 979-8-89138-406-4
SKU: 18-1335-01
Categories:Amplify Publishing, History

“A Chief’s Mess cannot be tighter than when scattered to all corners of the world. The Seabees of Naval Support Unit, State Department, have the privilege to lead and impact the lives of others in parts of the world that others may never see. I would challenge any Seabee to seek out special duty assignments to grow and develop in unfamiliar territory to lead and represent amongst the many communities of our great Navy. Bringing this diverse experience back to the Naval Construction Force better prepares us all to build and fight!”

FORCM Percy Trent, USN, (ret.)
17th Force Master Chief of the Seabees

“George Washington said, ‘Discipline . . . makes small numbers formidable; it procures success to the weak and esteem to all; U.S. Navy Seabees attached to the Naval Support Unit, State Department, are the epitome of this sentiment, performing well beyond expectations and what their numbers would suggest possible. Their ubiquitous support to a worldwide mission ensures some of the most sensitive diplomatic missions are provided with the requisite security to keep our secrets and our personnel safe. From my own firsthand knowledge working with Seabees while assigned to the U.S. Embassy in Moscow, Russia, I can unequivocally say that Detachment November provides a rare and compelling look into an operational area that is often overlooked but indispensable to the United States’ interests and objectives around the globe.”

MCPON Russell Smith, USN, (ret.)
15th Master Chief Petty Officer of the Navy

“The U.S. Navy Civil Engineer Corps (CEC) and Seabees have a history of superlative commissioned and non-commissioned officers that have defined our legacy. Detachment November illustrates the true character of our community by shining light on a less visible mission essential to our nation’s stature and global leadership. The fine men and women of the Department of State Naval Support Unit have spread the CEC and Seabee legacy worldwide for more than half a century. And only now, through extensive research and personal experience, Timothy Dahms leads us through the complete story of U.S. Navy Seabees in Diplomatic Security!”

RADM Bret Muilenburg, CEC, USN, (ret.)
44th Commander of Naval Facilities Engineering Systems Command and Chief of Civil Engineers

“Throughout my career, it was the norm that when we visited an overseas post, U.S. embassy workers were unanimous in exclaiming: ‘Yay! The Seabees are here!’ I am extremely pleased that Timothy Dahms has finally put this story to print. From Cold War drama to more recent security challenges, Timothy Dahms’s wellwritten and extensively researched review of this partnership for national security comprehensively memorializes the stories and successes that, until now, have been limited to lore, war stories related between colleagues, and a disparate smattering of official documents.”

John Fitzsimmons,
former Deputy Assistant Secretary of State and Assistant Director, Countermeasures Directorate, Bureau of Diplomatic Security

“The history of the Diplomatic Security Service is not complete without the dynamic involvement of the U.S. Navy Seabees since 1964. Through captivating storytelling of adventures in the far reaches of the world, Detachment November does justice to the unheralded men and women of the Diplomatic Security Service that advance U.S. foreign policy, safeguard national security interests, and further diplomacy around the world.”

Ambassador Eric Boswell,
former Assistant Secretary of State for Diplomatic Security, 1996-1998 and 2008-2012

“Having served more than forty years with the Department of State, I experienced firsthand the discovery of clandestine listening devices in Moscow, the armoring of cars, and installing protective devices and barriers to keep our diplomats and secrets safe. During every step of that journey, I was accompanied by U.S. Navy Seabees. Detachment November immediately brought me back to relive the incredible history between the Foreign Service Officers and Seabees of the Diplomatic Security Service that continues today.”

John Bainbridge,
former Director of the Office of Security Technology, Bureau of Diplomatic Security

Detachment November adds an important chapter to the true essence of the Seabee legacy. Through detailed accounts of fascinating historical events, U.S. Navy Seabees in support of the State Department mission have embraced the same ‘Can Do’ spirit as those serving in the Naval Construction Force since WWII.”

RADM Mark Handley, CEC, USN, (ret.)
former Commander of the First Naval Construction Division

“The intertwined history of the Seabees and State Department is as thrilling as a Cold War spy novel with operations all around the globe. Detachment November tells a fascinating history of U.S. Navy Seabees in Diplomatic Security. Told through the lens of one of the very few U.S. Navy Civil Engineer Corps Officers that have had the privilege to lead this unit, it addresses the unique challenges and opportunities encountered as the Officer in Charge.”

RDML Michael Giorgione, CEC, USN, (ret.)
and author of Inside Camp David

Timothy Dahms

Lieutenant Commander, Civil Engineer Corps, U.S. Navy

Timothy Dahms is an active-duty U.S. Navy Civil Engineer Corps Officer and former Officer in Charge (OIC) of the Naval Support Unit (NSU), Department of State. Raised in Waukesha, Wisconsin, he commissioned into the U.S. Navy after earning a B.S. in Civil Engineering from the University of Wisconsin-Platteville in 2010 and obtained his Professional Engineer license in 2016. Throughout his Navy career, Timothy has held assignments worldwide, including roles with the Officer in Charge of Construction at Marine Corps Base Camp Lejeune in Jacksonville, NC; Naval Mobile Construction Battalion 133 in Gulfport, MS; and Naval Base Guam Public Works Department and Naval Facilities Engineering Systems Command (NAVFAC) Marianas in Guam before leading NSU.

After leaving the NSU in 2021, Timothy earned a master’s degree in Civil Engineering from Stanford University in 2022. He has since served with the Officer in Charge of Construction at China Lake in Ridgecrest, CA, and NAVFAC Southwest in San Diego, CA. An active member of the Society of American Military Engineers, Timothy regularly presents technical and leadership topics at national conferences. Leading up to his first book, Detachment November, he has written articles about NSU for State Magazine and The Military Engineer. Timothy currently resides in San Diego with his wife Maurissa.