He made the remarks in his speech at plenary session of the NATO parliamentary assembly in London on Monday.
Stoltenberg further added “I commend the Afghan forces, and the Afghan men and women for what they have achieved, and I commend the Afghan people who exercised their democratic right to vote in the recent presidential elections.”
He also added that NATO supported the peace talks. “We would welcome the resumption of these peace talks, but then Taliban must show willingness to make real compromises at the negotiating table.”
However, he said “Unfortunately, what we see now is that the Taliban are escalating violence, not ending it.”
“This demonstrates a lack of commitment to lasting peace, and it proves the need for firm and credible guarantees for any future peace deal,” Stoltenberg added.
Stoltenberg also added that NATO remains committed to Afghanistan and to ensure the country never again becomes a safe haven for international terrorists.