Diplomacy is negotiation. If you can assemble enough like-minded nations, you might well be more effective than through using deadly force.
If peace through bombing were viable the 2003 US invasion of Iraq might have proven successful. The US Army's "Shock and awe" plan, alas, did not lead to a great advantage.
It was the only example of a US pre-emptive strike that has been pursued.
additonal vocab -
- Isolationism
- emir, shah and caliph