Gen John F. Campbell told this to US Senate Armed Services Committee in his written testimony on Tuesday.
He also acknowledged Pakistan military operation Zarb-e-Azb against terrorists in North Waziristan Agency, the once stronghold of local Taliban and their foreign cohorts.
“Pakistan’s military operations have displaced foreign fighters into eastern and northern Afghanistan,” Gen Campbell said. He added that Pakistan, like Afghanistan, has suffered greatly at the hands of terrorists and violent extremists. “The recent Pakistani Taliban (TTP) attack on a Pakistan Air Force base in Badhaber serves as a case in point,” he said.
He also acknowledged that Islamabad has facilitated efforts to broker peace in Afghanistan. “The role of Pakistan remains integral to stability in Afghanistan,” he added in his testimony.