US General McChrystal 'backs surge' in Afghanistan

The top US commander in Afghanistan has told US Congress that insurgents in Afghanistan "will not win" the war.

Testifying to US Congress, General Stanley McChrystal confirmed that President Obama's review of the strategy (including the deployment of 30,000 extra troops) had allowed for "greater clarity" to the mission.

Although General McChrystal warned that the Afghan mission was "undeniably difficult", he was confident that the insurgency "would lose momentum".