Why Is War Such an Alluring Illusion?

Today the US appears to stand on the brink of launching yet another major war, ostensibly out of moral outrage at what is happening in Syria, and allegedly for the sake of human rights, conducted with a completely unjustified sense of certainty that war will produce a better result than diplomacy, trade, and caution. What did we learn from the Great War if not that this is folly?
 

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