US President Barack Obama has authorised air strikes to target Sunni rebels in Iraq.<br /><br />He wants to hem in fighters from the Islamic State Group and aid the thousands of Yazidis that are trapped in the mountainous region of Sinjar.<br /><br />Al Jazeera's Patty Culhane reports from Washington.<br /> <br />Subscribe to our channel http://bit.ly/AJSubscribe<br />Follow us on Twitter https://twitter.com/AJEnglish<br />Find us on Facebook https://www.facebook.com/aljazeera<br />Check our website http://www.aljazeera.com/
