Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: A regrettable read

War...or at least the kind that's mustached and carries a swaggerstick. A hard read for those who do not buy Keegan views on war. There's too much of his own coloured personal opinion in his thesis to be quite convincing. It isn't hard to see why he ascribe to the view he does (ie "Fog in Channel; Continent cut off") but it makes for poor history for those who really wish for a clearer understanding of war.