The NATO allies decided on Tuesday to hold alliance troop levels in Afghanistan steady at about 12,000 next year and launched a campaign to fund the 350,000 Afghan forces it hopes can some day secure the country against Taliban militants.

Fourteen years after the United States first sent troops to Afghanistan, NATO governments have doubts about the ability of its army and police to defend against Taliban fighters, who briefly took over the northern city of Kunduz in September.

As a result, the 28-member Western alliance is abandoning plans to slash its troop levels by the end of this year.