[Ashley V]

Definitely a harness. If you are having a hard time training him for a walk, then you can buy a gentle leader or an easy walk harness. The gentle leader looks like a collar and it has a loop for the nose. The place where you hook the leash is at the bottom of the nose attachment so when you do pull on him, the pressure will be applied to his nose rather than his throat. If fitted properly the gentle leader is great. The easy walk looks a lot like a regular harness. I've had better luck with a gentle leader. Before you go out and buy that though, I would do regular leash training with him.