Shiroi Senshi Yamato

Shiroi Senshi Yamato was the first dog manga created by Yoshihiro Takahashi. The story was about the white akita Yamato and his life. Yamato was born with a special mark on his forehead and was to become a fighting dog. The story follows Yamato as he grows up and becomes stronger and stronger. He ends up winning the championship which was the goal for the young dog.

(Source: anything-asian.net)

Included one-shot:
Volume 26: Moon Kid