Iraq's Moqtada al-Sadr warns Mehdi Army ready to fight US
26 May 2011 Last updated at 22:23 BST
Iraqi cleric and militia leader Moqtada al-Sadr has threatened to take up arms against US troops unless they leave the country by the end of the year.
In a rare interview, he told the BBC he believed US forces would not stick to an agreement to withdraw from Iraq.
The US still has about 46,000 troops in Iraq, due to withdraw by January 2012.
Gabriel Gatehouse reports.