Petraeus works to halt foreign fighters.

And your analysis of our situation with Iran is any better? We've been in a proxy war with Iran since the late 70's. Does that in itself justify their involvement? We toppled what Iran once saw as the two greatest threats to their own national security. If anything, we did them a favor. And they know we aren't going to invade them with the current troops levels in either Iraq or Afghanistan. So the argument that they are only taking defensive measures is lacking.

I am pretty sure it wa started when we installed a governement there they did not like before the 70's.