Iraq's Sunni rebels prove formidable enemy

Military analysts say the Sunni rebels are using the experience they have gained in Syria and Iraq to their advantage which explains why they are proving to be a formidable enemy to Iraq's security forces.
Al Jazeera's Imran Khan reports from Baghdad. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website http://www.aljazeera.com