Since as early as the war of 1812 through to the present day US foreign policy has been one long, bloodthirsty SNAFU. We are not unique in that fact, but America is my nation and that makes me, as a citizen, uniquely responsible for our national conduct.
I'm not a pacifist and I don't know what we should do going into the future from here. All I know for certain is that too much blood has already been spilled since 09/11/2001.
And..... yeah. /rant