Casualty numbers that large are highly unusual, you generally only see them in legendary tales that are almost certainly exaggerated tenfold if they happened at

Casualty numbers that large are highly unusual, you generally only see them in legendary tales that are almost certainly exaggerated tenfold if they happened at all. Ancient armies were not particularly well organized and would usually dissolve rather than fighting to the last man. Also keep in mind that the non-US death toll of the Vietnam War was well in excess of 3 million.