Do we feel better now? I believe there plenty of agreement here, excluding unreasonable remarks.

The trial balloon for first strike public acceptance has been shot down long time ago. Bush went ahead with his shock and awe and the results were disastrous in the long run.
The tactic for tyrants is to make people afraid, very afraid.
Afraid to speak, afraid to resist etc. .

I refuse Trump's intended fear reactions by tweets and remarks.
It would be wise to try and do the same.

If you deliberately or intentionally promote fear, you are not helping.