Go check out Hecate's post, commenting on an op-ed by Starhawk in the Washington Post. An interesting view of "Just War." If you are like me, and have grave reservations about our open-ended wars in Iraq and Afghanistan, this piece takes a step back and examines the concept of war as a tool...and it comes up wanting.
Rather than comment directly on the original op-ed-I don't see where I could improve upon Hecate's observations, that's why the link to her rather than to the original. Note that Hecate is a witch--seriously--but don't let that dissuade you from treating her words quite seriously.
For me, the money quote is ""Violence is the last resort of the incompetent."