"Studies by Medical Corps psychiatrists of combat fatigue cases... found that fear of killing, rather than fear of being killed, was the most common cause of battle failure, and that fear of failure ran a strong second."

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Never, never, never believe any war will be smooth and easy, or that anyone who embarks on the strange voyage can measure the tides and hurricanes he will encounter. The statesman who yields to war fever must realize that once the signal is given, he is no longer the master of policy but the slave of unforeseeable and uncontrollable events.

— Winston Churchill