Military swarming is a behavior where autonomous, or semi-autonomous, units of action attack an enemy from several different directions and then regroup. Pulsing, where the units shift the point of attack, is a part of military swarming. Swarming is not limited to the human military realm. As the name suggests, it comes from insect behavior, although social insects, such as bees, wasps and ants, also use its principles in nest building, food gathering and reproduction.