The United States and coalition forces invaded Afghanistan in 2001 after the September 11 terror attacks. After the attacks, U.S. intelligence officials determined that the Afghani-based militant organization Al-Qaeda was responsible. In 2001 90% of Afghanistan was controlled by the Sunni Islamic military organization The Taliban. After the Taliban refused requests by U.S. President George W. Bush to dismantle Al-Qaeda the U.S. launched military operations known as Operation Enduring Freedom. As of June 27, 2019 2,419 U.S. troops have died in the conflict.
We should have developed a relationship with the Pashtun, restrained India, and warmed up to the ISI and Pakistani State. Long term goal would to be ensure Russia or China could not exploit a relationship with the Taliban and utilize a geopolitical strategy in the region.
Yes, they should pull all military forces, assets and equipment out of Afghanistan, but also disallow the activity of PMC companies and their own assets and employees. Most of our actions in the middle east are performed via PMCs anyway for plausible deniability, so simply removing official US troops will not solve the problem at all. The PMCs need to go and be barred from activity in that region.