The unit trained dogs to guard, assault, detect explosives and injured/dead bodies.
In the same way, dogs when castrated stop running away from their masters, but are no less useful for hunting or guarding.
I used to have a big dog, a rottweiler, to guard the place.
A three-headed dog guarded the entrance, but it backed away from her and they passed through.
When he went out for food, the dog would stay and guard the cave.
Behind a hotel room door, a huge dog guarded a metal bowl of meat.
He asked himself why dogs guarded the Co-op.
The dog guarded the baby when the mother could not be with him, and grew old as he grew up.
He could feel their contempt for the dogs guarding the Tuatha'an.
A large, toothy dog with a chain around its neck guarded the front.