There's a great book on amazon that includes both sun tzu's Art of War, and Clausewitz' On War. Both are well translated. Though Clausewitz certainly did not read Sun's work as the first translation was rather obscure and terrible! https://www.amazon.ca/Book-War-Sun-tzu-Warfare-Clausewitz/dp/0375754776/ref=sr_1_1?ie=UTF8&qid=1497458541&sr=8-1&keywords=book+of+war
Read this
Its two books of War in 1 - 973 pages
The Art of War by Sun-Tzu and ON WAR by Carl von Clausewitz
Read this, and you'll likely know more about war at least from a historical or philosophical perspective than your DI or even your CO does LOL
** I have read this book.