The target of preventive war must have several characteristics. It must be virtually defenceless; it must be important enough to be worth the trouble; it must be possible to portray it as the ultimate evil and an imminent threat to our survival.
Sentiment: NEGATIVE
Another term for preventive war is aggressive war - starting wars because someday somebody might do something to us. That is not part of the American tradition.
War is no picnic. Wars should be prevented, and if you can't prevent them, you have to put them off.