Taliban guerrillas killed three policemen in an ambush on a convoy of U.S.-led troops in Afghanistan on Wednesday, a provincial official said.

The head of US forces in Iraq, General David Petraeus, has told the BBC that fighting the insurgency is a “long term endeavour” which could take decades.

The 22-country Arab League will send envoys on a historic first mission to Israel this week to discuss a sweeping Arab peace initiative and how it might prop up embattled Palestinian President Mahmoud Abbas, Israeli and Arab diplomats said Sunday.