Thursday, November 23, 2017

War dogs developing canine PTSD

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LACKLAND AIR FORCE BASE, Texas — Not long after a Belgian Malinois named Cora went off to war, she earned a reputation for sniffing out the buried bombs that were the enemy's weapon of choice to kill or maim U.S. troops.

Cora could roam a hundred yards or more off her leash, detect an explosive and then lie down gently to signal danger. All she asked in return was a kind word or a biscuit, maybe a play session with a chew toy once the squad made it back to base.

"Cora always thought everything was a big game," said Air Force Tech. Sgt. Garry Laub, who trained Cora before she deployed. "She knew her job. She was a very squared-away dog."

But after months in Iraq and dozens of combat patrols, Cora changed. The transformation was not the result of one traumatic moment, but possibly the accumulation of stress and uncertainty brought on by the sharp sounds, high emotion and ever-present death in a war zone.

Cora — deemed a "push-button" dog, one without much need for supervision — became reluctant to leave her handler's side. Loud noises startled her. The once amiable Cora growled frequently and picked fights with other military working dogs.

When Cora returned to the United States two years ago, there was not a term for the condition that had undercut her combat effectiveness and shattered her nerves. Now there is: canine post-traumatic stress disorder.

"Dogs experience combat just like humans," said Marine Staff Sgt. Thomas Gehring, a dog handler assigned to the canine training facility at Lackland Air Force Base, who works with Cora daily.

Veterinarians and senior dog handlers at Lackland have concluded that dogs, like humans, can require treatment for PTSD, including conditioning, retraining and possibly medication. Some dogs, like 5-year-old Cora, just need to be treated as honored combat veterans and allowed to lead less-stressful lives.

Walter Burghardt Jr., chief of behavioral medicine and military working-dog studies at Lackland, estimates that at least 10 percent of the hundreds of dogs sent to Iraq and Afghanistan to protect U.S. troops have developed canine PTSD.

Cora appears to have a mild case. Other dogs come home traumatized.

"They're essentially broken and can't work," Burghardt said.

There are no official statistics, but Burghardt estimates that half of the dogs that return with PTSD or other behavioral hitches can be retrained for "useful employment" with the military or law enforcement.

Others are retired and made eligible for adoption as pets.

The decision to officially label the dogs' condition as PTSD was made by a working group of dog trainers and other specialists at Lackland. In most cases, such labeling of animal behavior would be subjected to peer review and scrutiny in veterinary medical journals.

But Burghardt and others in the group decided that they could not wait for lengthy professional vetting — that a delay could endanger those who depend on the dogs.

Since the 2001 terrorist attacks, the military has added hundreds of canines. It now has about 2,500 — Dutch and German shepherds, Belgian Malinois and Labrador retrievers — trained in bomb detection, guard duty or "controlled aggression" for patrolling.

Lackland trains dogs and dog handlers for all branches of the military. The huge base, located in San Antonio, has a $15 million veterinary hospital devoted to treating dogs working for the military or law enforcement.

The bond between handlers and military working dogs is legendary. Army 1st Sgt. Casey Stevens has a catch in his voice when he mentions Alf, the German shepherd with which he deployed to Iraq. Alf survived the war and died of natural causes.

"He saved my life several times; he had my back," Stevens said. "Some guys talk to their dogs more than they do to their fellow soldiers. They're definitely not equipment."

"Equipment" is a kind of dirty word among dog handlers. In the Vietnam War, the military left behind hundreds of working dogs, determining that they were excess equipment. That will never occur again, military officials promise.

But when some of the current generation of war dogs returned to the U.S., their handlers noticed the lingering effects of battle.

Stevens has seen once-confident dogs freeze up when going through an easy training exercise. "They would just shut down," he said. "I think they were going through memories."

Just why Cora's behavior changed is unknown. One possibility is that she sensed the apprehension of her handler or other troops — classic battlefield concern that after months of survival, your luck is running out. A working dog has been trained to understand and even anticipate the handler's needs and moods.

Two factors slowed down the decision to label canine PTSD. For one, Burghardt and others did not want to suggest disrespect for the military personnel who have been diagnosed with the disorder.

Second is the problem faced by any veterinarian. "You can't ask them questions," Burghardt said.

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