Pakistan could collapse within six months in the face of snowballing insurgency, according to a top expert on guerrilla warfare. Such dire prediction was given by David Kilcullen, a former adviser to top US military commander General David H Petraeus.

Petraeus also echoed the same thought when he told a Congressional testimony last week that insurgency was one which could 'take down' Pakistan, which is home to nuclear arms and Al-Qaeda.