Among the pile of books on my night table, there are always a few volumes about war.
It should be obvious to any clear-thinking person that war is the final arbiter of all great conflicts. Those who speak of negotiated peace speak of fiction.
The great world wars have made this world what it is, and there are numerous lessons to be learned militarily in terms of the present war with radical Islam. Thus I draw your attention to two very fine books: The Guns of August by Barbara Tuchman and A World at Arms by Gerhard L. Weinberg.