Check out these dog guard images:

Alaska Army Guardsman Prepares for Iditarod

Image by The National Guard
Alaska Army National Guard Staff Sgt. Harry Alexie prepares a dog for a training run near two-time Iditarod champion Lance Mackey’s Comeback Kennel training facility in Fairbanks, Alaska, October 2008.

Alaska Army Guardsman Prepares for Iditarod

Image by The National Guard
Alaska Army National Guard Staff Sgt. Harry Alexie runs 10 sled dogs on an 18-mile practice run near two-time Iditarod champion Lance Mackey’s Comeback Kennel training facility in Fairbanks, Alaska, October 2008.

He Guards The Entrance

Image by srqpix
Pretty cool looking