Train Hard and Play Harder

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United K9 Working Dogs


Meet The Owner and Head Trainer.


My whole life I have had a passion for dogs. I have always had some kind of pet in my life but dogs have always provided me with a source of happiness, which lead me to volunteer at local shelters early on. In September 2006 I had to make a choice in my life that would take me away from my passion to help our country. I wanted to join the military as a K9 Handler but there were no slots available. Instead, I joined as a Combat Engineer. A year and a half into my first duty station, a Sergeant Major came to our company looking for soldiers to go to Mine Dog School, I jumped into action. In March 2009 my whole life changed. I was living my dream working with K9's and helping our country. One of the greatest things to come out of that training school was a dog that will forever hold a special place in my heart. Her name is MWD Raja.

After getting out of the military I knew undoubtedly what I wanted to do for a living. I started a training program in Saint Robert, MO called K9 Manners. I worked with the Waynesville and Saint Robert's, MO Animal Shelters. I left Missouri, I moved to Harker Heights, Texas in 2012 and started my company, United K9 Academy in 2015. I dedicated volunteer time every week hours to the local dogs shelters to help place dogs in their forever homes. I also volunteered time to help these dogs achieve success at remaining in their new home after adoption.

Today, I currently work with TADSAW (Train A Dog Save A Warrior), working hand in hand with Vets that have PTSD and TBI. A Great benefit of working with the TADSAW Program is getting to help veterans find compatible canine companions from the shelter system. Win-win for both the Vet and the newly adopted dog. One of my favorite passions would be working with aggressive dogs. I also enjoy helping owners to understand why and how dogs act the way they do and to help dog owners achieve the desired behaviors they are seeking from their dog. Training is a passion of mine and I look forward to sharing my years of hands on experience with you.

Search and Destroy



Fort Leonard Wood MO. 49th EN Mine Dogs

Belgian Malinois

Raja served in the United States Army under me as a Mine Dog. Our job was to search for Landmines and IEDs in Afghanistan.

Rest in Peace


United K9 Elektra

United K9 Search and Rescue and Service K9

Belgian Malinois

Elektra Joined the Family in 2012 she was my demo dog and we trained in Search and Rescue and she was trained in Scent Work. Her other job was to be my Service K9. She passed on July 27, 2023

Rest in Peace


United K9 Ziva

United K9 Demo Dog and Service K9

German Shepard

Ziva Joined the Family in 2024, She is in training for a Service Dog.


United K9 Ragnar

K9 Trainee

German Wirehaired Pointer

He came DJ Bar Ranch in Montana. Comes from a amazing lineage. His training will be for Search and Rescue, Bed Bugs Searching, and Service K9.

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Search and Rescue Training

Let's get out and find some people

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K9 Scent Training

Nothing can hide from K9s

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Bed Bug Training.

Say goodbye to the hassle of dealing with dog waste and let us take care of the dirty work.


The K9 Nose

Your K9's nose can smell 10,000 to 100,000 times better than your nose. Three things make that happen. Inside your K9 nose, there are about 300 million smell receptors, compared to our measly 6 million. Your K9's brain area that detects smell is 40 times bigger than yours.

Some Facts about the K9 Nose

  • The K9 Nose can smell 40 feet underground.
  • K9 can smell separately with each nostril. Just as our eyes compile two slightly different views of the world, and our brain combines them to form a 3-D picture, a K9 brain uses the different odor profiles from each nostril to determine exactly where smelly objects are located.

  • K9 can detect the tiny reductions in the concentrations of odor molecules that occur over short periods of time. This allows tracking dogs to quickly determine which direction a person or animal has gone in by sniffing the ground.

  • K9 vomeronasal organ helps them detect pheromones, which are chemicals that animals release that affect other members of the same species. This organ plays an important role in reproduction and other aspects of canine physiology and behavior.

  • “When sniffing, K9's noses are designed so that air can move in and out at the same time, creating a continuous circulation of air, unlike humans who have to either breathe in or out only

Scent List


  • Base Smokeless Powder
  • US Tagged RDX
  • ICAO
  • Dynamite
  • TNT
  • Semtex
  • TATP
  • HMTD
  • PETN
  • Potassium Chlorate
  • Ammonium Nitrate
  • Black Powder
  • Sodium Chlorate
  • Untagged RDX
  • Firearms


  • Cocaine
  • Fentanyl
  • Heroin
  • LSD
  • Marijuana
  • Methamphetamine
  • MDA / MDMA
  • PCP

Other Odors

  • Bed Bugs
  • Mold
  • Cadaver

Allergy Alert K9

Peanuts/ Peanut Butter

Book With United K9 Today

Please Call and ask for Craig. All Working Dogs will be Trained by Craig R Hanna Located In Caddo Mills TX

Contact Us Today