Bolo!

CYBERNETIC COMRADES IN ARMS BOLOS. For a millennium and a half, they have been humanity's warriors. They have fought Man's battles, died in Man's wars, battled to save Man's children, even from his own kind. They have guarded Man's worlds . . . and avenged Man's defeats. Tireless, infinitely patient, infinitely deadly, Bolos are the most fearsome fighting machines ever developed. The most lethal artificial intelligences in history. Yet they are more than that. They are not merely the weapons of their Human commanders, but their comrades. Brothers and sisters in arms, who all too often die together. But Bolos and their commanders do not die easily. Mankind's enemies have learned the price of a Bolo's death. And if Bolos and their commanders do not always die in victory, this much has always been true. They do not surrender. And they never--ever--quit.