Armed forces from the US and other Western nations are facing a new threat in Iraq.

American airbases have come under attack from Iranian-made drones carrying explosives.

Iran denies involvement but its proxies in Iraq, the Shia militia, have been growing in strength.

What is in effect a shadow war is taking place between the US and Iran, with Iraq as the battleground.

Huw Edwards presents BBC News at Ten reporting by Quentin Sommerville.

Please subscribe HERE http://bit.ly/1rbfUog

#BBCNews