The dogs of the arctic are more than pets; they are an essential lifeline necessary for communication and transportation, and as a consequence any weakening of the gene pool is a threat to life itself.
And so it is that Greenland, which is under the control of Denmark, has special laws to protect the native sled dog population.
In Greenland, no snowmobiles are allowed in the north of the country, nor are any imported sled dogs allowed -- a way of making sure that gasoline and degenerate dogs from the Kennel Club do not wreck the native canine gene pool which has been 5,000 years in the making.
In order to enforce the law, Greenland has the "Sirius Dog Sled Patrol,"">a special forces team that moves by native sled dog. The Sirius patrols are pairs of men, with 11-15 sled dogs, operating in true wilderness for four months at a time, and often without additional human contact. There are six patrol teams, and regular hazards include polar bears.