The US on Thursday termed the military action by Pakistan government against Taliban in restive tribal areas as "encouraging" but said the "biggest question" is about sustainability of the operations.
"The biggest question about these operations is their ability to sustain them over time. Historically they haven't done that. So right now I'm encouraged by what's happened, but I certainly withhold any judgment about where it goes, because
of the lack, historic lack, of sustainment," Chairman Joint Chief of Staff Admiral Mike Mullen said.
He along with Defense Secretary Robert Gates testified before the Senate Armed Services Committee on Thursday, seeking lawmaker's approval for the war funding. Responding