Why Some Wars Never End: The Stories of the Longest Conflicts in History - Joseph Cummins - Google Books

http://books.google.de/books?id=ftCAR3IU_9kC&pg=PA179

The Bloody Hostilities, Feuds, and Quarrels that Refuse to Release their Grip. Sometimes the causes of war are so intractable, the opponents so unyielding, and the rivalries so deep-rooted that the combat continues for years, decades, even centuries. And…