Dogs make the world a better place, no doubt about it. Nothing can compare to the unconditional love they give us. Their love is so pure and innocent that it brings out the best in us people. Dogs can make a difference for the better and help people who went through traumatic experience cope with post-traumatic stress and find their way back to living a happy, fulfilling life. This is the emotional video letter of a former soldier to his service dog Captain in which he thanks his buddy for everything he’s done for him. Take a look: