Why do we care about the Kurds?

Let the former colonial powers deal with the problems in their former colonies or make a UN problem and leave the U.S. out of it.

IMO, we should have left Iraq alone as a buffer against Iran, or if Iraq actually needed to be changed, let the Israelis do it since Israel and Iran were the 2 countries that benefited the most from GWB's decision to invade Iraq and depose Saddam Hussein in 2003.