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In 1918, the Marine Corps earned one of its many well-known nicknames at the battle of Belleau Wood. After a ferocious offensive, the Marines forced the Germans into a retreat. Marine Corps legend has it that in the wake of their withdrawal, one German soldier left a journal in which he described the Marines as “Teufelhunden”, meaning “devil dogs”.

While Marines continue to fight with the courage and ferocity that earned them this nickname, one group of Marines rises above the rest in truly living up to this moniker. These are the Marine Corps’ military working dogs.

Loyally accompanying warriors on battlefields around the world since ancient times, dogs have long provided militaries with their special skills and dogged determination in battle. During World War II, Marines used MWDs extensively to root out well-concealed enemy positions during the island-hopping campaigns in the Pacific. At the height of the Global War on Terror, MWDs served Marines well in Iraq and Afghanistan, using their keen senses to detect improvised explosive devices and saving numerous lives in the process. Even more recently in October of 2019, a Belgian malinois MWD named Conan took part in the successful special operations forces raid to kill Islamic State leader Abu Bakr al-Baghdadi in the Idlib province of Syria.

In the Marine Corps of the 21st century, MWDs are highly trained operators, putting their natural abilities to good use protecting Marines in a variety of complex environments. Specifically, MWDs are able to detect improvised explosive devices with their keen sense of smell, and can capture high value targets using their powerful nonlethal bite capability. When attached to an already formidable squad or platoon of Marines, these fierce dogs also heighten the unit’s intimidation factor toward potential foes.

“The bond between a working dog and their handler is unlike any I’ve experienced before.”

The Marine Corps relies on German shepherds, Belgian malinoises, and labrador retrievers to fill its MWD program. The first stop for these motivated pups is Lackland Air Force Base in Texas, where all U.S. MWDs are sent for training. The length of boot camp is based on each dog’s abilities, and the instruction focuses on teaching obedience to orders, tracking and attacking, and physical fitness. After completing their basic training, most dogs spend six to ten years in the military before transitioning and retiring around age ten.

In order to tap into these dogs’ skills, the Marine Corps relies on military working dog handlers – specially trained law-enforcement Marines that can attach to infantry and reconnaissance units in order to add a nonlethal capability as well as enhance the unit’s situational awareness to threats.

After training, Marine Corps law enforcement and special operations units throughout the world receive their dogs and pair them with a handler. In garrison at their units, MWDs train just as all Marines do, regularly going on field operations to hone their skills in both urban and field environments, and even running special obstacle courses to stay strong and agile, all alongside their trusted handler. The process of finding the right handler and dog pair is not an exact science; units will shuffle dog handlers around to get the right combination between the abilities of the Marine and the MWD to support the necessary mission set.

For Cpl. Andrew Richter, an MWD handler with the 31st MEU’s Maritime Raid Force (MRF), working with his dog is both a great honor and great responsibility. Richter and Jack are key enablers that attach to the 31st MEU’s Maritime Raid Force, an elite group of Marines that specializes in reconnaissance, direct action raids, and the 31st MEU’s signature mission: visit, board, search, and seizure, which is conducted to interdict hostile ships.

“This is what I enlisted in the Marine Corps after college to do. I love my job,” Richter said. “It’s a lot of responsibility because Jack is not just my best friend, but it’s also like having both a coworker and a child that depends on you for everything, all rolled into one.”

When conducting simulated VBSS missions, Richter and Jack fast rope out of a Marine or Navy helicopter onto the target ship, ready to execute. Whether it’s rescuing hostages, sniffing for bombs or drugs, or snatching a high value target, the duo is able to seamlessly integrate with the raid force to accomplish the mission. These nonlethal force and detection capabilities are skills that MWDs and their handlers can provide to infantry units in the field as well, and are regularly practiced both in garrison and on ship.

While aboard amphibious assault ship USS America, deployed with the 31st MEU, MWD handlers are often found taking their partner-in-crime out for a much needed breath of fresh air and training in the hangar bay. This includes familiarization training, where dogs are acclimated to the sound of gunfire to prepare for combat operations, bite demonstrations where participants wearing thick protective bite suits get to experience the powerful jaws of military working dogs firsthand, and regular runs on the flight deck.

Wherever they go, MWDs like Jack, who is affectionately known as “Jack-Jack”, are typically the center of attention. On ship, it’s not uncommon to see large groups of Sailors and Marines taking a break from work in the hangar bay to pet MWDs as they enjoy the fresh air and ocean breeze.

Even so, typically when others pet or interact with an MWD, the interaction and affection is one-sided. A well-trained MWD answers only to their handler, and it’s this fierce loyalty that makes these dogs one of the best companions on the battlefield.

“The bond between a working dog and their handler is unlike any I’ve experienced before. We both bring something unique to the table that neither one of us would be able to do without the other,” said Richter. “A dog team is only as successful as the trust they have in one another’s abilities and knowing that in order to complete the mission, we need to work together.”

America, flagship of the America Expeditionary Strike Group, 31st MEU Team, is operating in the U.S 7th Fleet area of operations to enhance interoperability with allies and partners and serve as a ready response force to defend peace and stability in the Indo-Pacific region.

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MSgt Edd Prothro, USMC Ret. 1964-1984 - April 18, 2020

Hi Stoney – I tried to send you the links to some interesting web sites, but this blog will not accept the URLs. If you would like, you can contact me direct at I too am an amateur historian and have been a voracious reader all of my life. However, I don’t think that it is necessary to cite an individual German soldier by name in order for the term to be valid. And, after checking my very old English-German dictionary, you are correct that it should be spelled “teufelshunde” with and s. Semper Fi!!!

‘Stoney’ Brook - April 18, 2020

I’ve read a lot of military history. Interestingly, there’s never been a verified source of the term ‘Devil Dogs’ being applied to Marines by Germans. It seems based more on a recruiting poster and in folklore (sea story) or revisionist history than fact. As I understand it, the proper German grammar is ‘Teufelshunde’, with an ‘s’ and not in two words.

I’d be delighted if someone can point to a reliable source of the name being connected to the German army of WWI,

I also have noted the US Army 5th Infantry Div adopted the name ‘die Roten Teufel’ (Red Devils) for their red diamond shoulder insignia worn in WWI.

John D. Borges - April 18, 2020

The Doberman Pinscher was chosen for the War Dog Memorial in Guam because the breed was used extensively during WW 2. Known for its loyalty among other outstanding qualities, the breed was favored among front line troops.

Cpl. Dave Campbell team “Colorado” team leader ‘B’ Co. 3rd Recon Bn. VN ‘68-‘69 - April 18, 2020

I know for a fact that a Mwd ( if that’s what they were referred to back then) saved my Recon team while on a patrol in the DMZ back in Vietnam. The Mwd alerted his handler of a NVA ambush that surely would have ended badly for us. But disaster was avoided by this brave Mwd ! My team & I will forever be beholding & grateful for the rest of our lives.

Richard Oldenburg - April 18, 2020

Curious? How did it become, that a Doberman Pincher (I have two) was chosen for the War Dog Memorial in Guam? I know my girls are very smart and protective, I love the breed.

MSgt Edd Prothro, USMC Ret. 1964-1984 - April 18, 2020

Great story, Sgt Grit! Being of Welsh/German heritage, my ears perked when I first heard the term “Teufelhunden” many years ago. We learned that the term Devil Dogs related to the fact that Marines were such good marksmen, and that the German soldiers said they would “feel the bite, before they heard the bark.” This alluding to long distance marksmanship. Had the pleasure of having MWD’s from 3d MP Bn attached to our Provisional Rifle Co at FLC/Camp Books in 1969. Eased the anxiety while patrolling and sitting in ambush. Semper Fi!!

Kapena - April 18, 2020

Nice story. I see similar character traits between Mwd ” Jack jack” and human” devil dogs”. Except that Mwd never complain! They should stud him out after retirement! Ooorah!

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