President Barack Obama’s decision to keep 9,800 American forces in Afghanistan into 2016 has resonated through the region, the commander of NATO’s Resolute Support Mission said.

Army Gen. John F. Campbell said that at this time last year the United States was headed toward 1,000 service members in Afghanistan by the end of 2016.

"We were closing all our bases and we were going to be Kabul-centric," he told reporters during an interview.

But in October, Obama announced that the United States would maintain 9,800 troops in Afghanistan through most of 2016, ultimately heading toward an end strength of 5,500 by Jan. 1, 2017.

"That’s a huge change from where we were," Campbell said.

The decision was important for its resonance.

Forty troop-contributing nations signed on last week at the NATO foreign ministerial meeting to continue contributing forces and money to the Afghan mission.

"We’ll continue to provide the train, advise and assist with these regional spokes that we’ve [trained and advised, and] assist the aviation wing and Afghan special forces," Campbell said.

Troop level decision – wide audience

The announcement was aimed at six different audiences, he said.

It made a huge difference to Afghan President Ashraf Ghani.

Ghani is a willing partner who has spoken of American efforts in his country and who has told his countrymen of American sacrifices for Afghanistan.

The Afghan leader sees the United States as a "foundational partner," Campbell said, and wants to continue to build Afghan capabilities.

The decision gave the Afghan people more confidence "that the international community would stay with them. There was some unpredictability there. If the U.S. stays, everybody stays. If the U.S. had left, probably everybody would have left," he said.

Afghan security forces gained the confidence their partners would remain and help build capabilities.

The decision was a warning to the Taliban that the United States was committed Afghanistan’s future, and that the group could not simply wait out the Americans.

For Pakistan, the decision said the United States and NATO are in the fight for the long term.

Finally, the decision contained a message for NATO, Campbell said.

"This has been [NATO’s] largest ongoing operation and we have an opportunity to build upon what we’ve done these last 14 years and come out with a strategic win here," he said.

There are still problems, Campbell noted, but the Afghan government is willing to confront them, learn and move on.

He cited the Taliban attack on Kunduz as an example.

The temporary Taliban takeover of the provincial capital was an information operation win for the enemy and a wake-up call for the Afghan government, Campbell said.

Afghan officials understand they have to develop governance at the lowest levels of the districts to stop similar attacks from occurring, he added.

(Editor’s note: This article is based on a story by Jim Garamone, Defense News.)