U.S. Secretary of Defense Ash Carter made a surprise stop in Afghanistan Tuesday.
Carter was in the country to meet with President Ashraf Ghani and Chief Executive Abdullah Abdullah, as well as U.S. commanders.
卡特在阿富汗会晤了该国总统阿什拉夫·加尼（Ashraf Ghani）和行政长官阿卜杜拉·阿卜杜拉（Abdullah Abdullah），以及美国指挥官。
The visit comes days after an agreement with international leaders to support Afghanistan with 12,000 NATO troops.
NATO allies also agreed to provide more funding for the Afghan National Defense and Security Forces through 2020.
In a press conference Tuesday with President Ghani, Carter discussed Afghanistan's economic and anti-corruption reforms. He said the government's progress on those reforms "is central" to the continued international support for the country.
Also on Tuesday, Carter said under new power, General Mick Nicholson, commander of U.S. and international forces in Afghanistan, has greater freedom to strike at the Taliban.
Before the new changes, Nicholson and his forces could only intervene against the Taliban when Afghan government troops requested assistance.
More U.S. troops to remain in Afghanistan
Meanwhile, President Barack Obama announced last week that close to 8,400 U.S. troops will remain in Afghanistan through the end of his presidency in January 2017. That is more than the Obama administration had originally planned.
More than 2,000 of the remaining U.S. troops will support the U.S. counterterrorism mission. The mission will target al-Qaida as well as Islamic State fighters trying to take control in eastern Afghanistan.