Martial arts manual
Not within the scope of this article are books on military strategy such as Sun Tzu's "The Art of War" ( before 100 BC ) or Publius Flavius Vegetius Renatus' "De Re Militari" ( 4th century ) , or military technology , such as "De rebus bellicis" ( 4th to 5th century ) . 
<triplet> Sun Tzu <subj> military strategy <obj> field of work <subj> The Art of War <obj> notable work <triplet> The Art of War <subj> Sun Tzu <obj> author <triplet> Publius Flavius Vegetius Renatus <subj> De Re Militari <obj> notable work <triplet> De Re Militari <subj> Publius Flavius Vegetius Renatus <obj> author