According to this, Trump's plan was to force the Afghanistan government into a power sharing agreement with the Taliban...and to keep a small garrison in country to continue the counter terrorism mission...
"While serving on the National Security Council, Miller said it was determined that the US could continue to run counterterrorism missions in Afghanistan with only 800 military personnel."
A former top ranking national security official in his administration says former President Donald Trump never intended to pull all US troops out of Afghanistan — because the plan to withdra…
nypost.com
But Biden scrapped that plan.
Biden didn't want to keep any troops in Afghanistan.
And the ensuing catastrophe was the result.