Military working dog Oohio preforms an aggression exercise Aug. 31 at the kennels on Camp Hansen, Okinawa, Japan. The Marine and military working dog are a team. The job of being a handler is always a work in progress. Marines are encouraged to push their limits and learn more when it comes to doing their jobs. They are always learning new techniques and procedures when it comes to performing their job to the best of their abilities. - Military working dog Oohio preforms an aggression exercise Aug. 31 at the kennels on Camp Hansen, Okinawa, Japan. The Marine and military working dog are a team. The job of being a handler is always a work in progress. Marines are encouraged to push their limits and learn more when it comes to doing their jobs. They are always learning new techniques and procedures when it comes to performing their job to the best of their abilities.