One of my favorite quotes is from Hemingway, who said, "Never persuade yourself that war, no matter how necessary, is not a crime." … It is. Sometimes it's necessary, but it's always awful, and that's my point.
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Fussell here slightly paraphrases Hemingway's statement from his Foreword to Treasury for the Free World (1946): Never think that war, no matter how necessary nor how justified, is not a crime. Ask the infantry and ask the dead.