 "Of course, he [Giap] was a formidable adversary", Westmoreland told correspondent W. Thomas Smith Jr. "Let me also say that Giap was trained in small-unit, guerrilla tactics, but he persisted in waging a big-unit war with terrible losses to his own men.By his own admission, by early 1969, I think, he had lost, what, a half million soldiers?He reported this.