 But connecting a veteran with a well-trained service dog can be difficult. Wait lists are long, and training can cost tens of thousands of dollars. But service dogs can bring healing. If you're a veteran or know a veteran struggling with post-traumatic stress or traumatic brain injury, please go to AmericanHumane.org to learn about their Pups for Patriots program, which provides dogs to veterans for free of charge. Let's help our veterans heal from the invisible wounds of war.