Prime Minister Imran Khan admitted that Pakistan committed "one of the biggest blunders" by joining the US after the 9/11 attacks, saying the previous governments "should not have pledged what they could not deliver." After the US invasion of Afghanistan following the 9/11 attacks, Pakistan extended support to American forces against the Taliban.

from Times of India https://timesofindia.indiatimes.com/world/pakistan/pakistan-committed-one-of-the-biggest-blunders-by-joining-us-after-9/11-imran-khan/articleshow/71265201.cms