"We have got to step up to what two (US) Presidents have failed to do and that is deal with these sanctuaries in Pakistan from which intelligence, support and training for operations inside Afghanistan comes," Gen (rtd) John M Keane told members of the Senate Armed Services Committee during a Congressional hearing.
"This is Afghan-Taliban sanctuaries in Pakistan and specifically the Haqqani Network should be targeted just like Al Qaida.
Keane also advised against withdrawal of US counter-terrorism forces from Afghanistan in 2016 or reducing the number of Afghan security forces from their existing strength of 325,000.
"What makes this so serious strategically inside Afghanistan is Kabul's presence to the Haqqani Network.
"Every place that gets lit up in Kabul is done by the Haqqani Network and they are in the environs right now with support infrastructure surrounding Kabul," he said.
"Anybody coming to you and telling you that we should put the Afghan national security forces on a decline after 2016 is absolutely foolish and irresponsible in that recommendation," he said.
"These are the guys that chase down high-value targets. When we did that in Iraq in 2011, it was a disaster.
"When Al Qaida began to rise because we pulled out the intelligence capability to see it, we couldn't see it and we couldn't hit it.
