Something that puts the embassy burning in perspective:
http://en.wikipedia.org/wiki/NATO_bombing_of_the_Chinese_embassy_in_Belgrade
You go about assisting in the dismemberment of a country, you should expect citizens of that country will be upset.
Wonder how we would feel about the Chinese or Russians if they assisted in the dismemberment of the American Southwest by Hispanic "Aztlan-ers"...?
I suspect some violence might also ensue.
If were comitting genocide, we would deserve it. There were times when foriegn intervention would have been appropriate, for example the civel war.
No matter, at the international level, there really is no law, Machiavelli was correct.