Unconditional Love!

       https://www.bing.com/images/search?
                        q=Veteran+Service+Dog&view=detailv2&&i                   
                 

Any dog owner can tell you the benefits of having a dog, this is the same for a veteran with PTSD, dogs are great company, they pull the feeling of love out of you. If trained right, they are great at taking orders. Having a dog gives you reason to get back out in the world and also can help reduce stress.

.http://www.ptsd.va.gov/public/treatment/cope/dogs_and_ptsd.asp

Comrades

                                                                                

Therapy Dogs are specifically trained to help improve the quality of life for wounded veterans, with PTSD (post traumatic stress disorder), or with amputations.

http://www.prosthetics.va.gov/ServiceAndGuideDogs.asp