You mean Pakistan. US provided some weapons to mujahideen earlier in countering the soviets and Communism, aligning with my previous statement about "classical liberal enlightenment values." Once they had taken over Afghanistan, the US might have mistakenly thought they would be better than alternatives, but that ended quickly. Then:
"During their rule from 1996 to 2001, the Taliban and their allies committed massacres against Afghan civilians, denied UN food supplies to 160,000 starving civilians and conducted a policy of scorched earth, burning vast areas of fertile land and destroying tens of thousands of homes."[0]
It's quite a bit more than "some weapons". Click a few of the links off that Wikipedia article, particularly about Lady Taliban. Another familiar name that will pop up is Osama.
"During their rule from 1996 to 2001, the Taliban and their allies committed massacres against Afghan civilians, denied UN food supplies to 160,000 starving civilians and conducted a policy of scorched earth, burning vast areas of fertile land and destroying tens of thousands of homes."[0]
[0]https://en.wikipedia.org/wiki/Taliban