"the sleepwalkers" by christopher clark is really pretty world war i, the period of time starting around well, 1872 the opening of wa one or oe in 1914 to in many ways it contradicts a wonderful book the guns of august the some of your of stumbled into war i as an accident waiting to happen. this books is not so much to this books is actually they were applauding, they're playing and there were many, many wars and many conflicts that preceded 1914 absolutely were a prelude and an inevitable prelude to war. and that the powers that lined up against each other were, in fact, not stumbling into something. they actually had alliances and designs. not that they wanted to kind of cataclysmic war that occurred, but the idea that there's going to be conflict between germany and ostrom hungry and russia, europe and -- austro hungry, was not an unexpected thing. it was quite well done and a lot of history on the importance of the balkans to what happened, not just sorry able in the assassination of duke ferdinand but lots of wars for bosnia's independence and against the ottoman empire during that