Bush: Spike in Iraq Violence a "Defining Moment"

President Bush called the recent spike in violence in Iraq "a defining moment in the history in Iraq," during an appearance with visiting Australian President Kevin Rudd.

The recent flare up has come as US and Iraqi forces are making a push to rout out Shiite militia strongholds in Baghdad and Basra.

"They are fighting some pretty tough characters... and yes, there's going to be violence, and that's sad," Bush said.