Scout dogs
These dogs were highly trained and had to be of a quiet, disciplined nature. Their role was to work with soldiers on foot patrolling the terrain ahead of them. These dogs were useful to the military because they could detect enemy scent up to 1000 yards away, sooner than any man could. Instead of barking and thus drawing attention to the squad, the dogs would stiffen raise its hackles and point its tail, which indicated that the enemy was encroaching upon the terrain. Scout dogs were widely used because they were highly efficient in avoiding detection of the squad.