“If America does not withdraw its forces from Afghanistan, the day will not be far when Afghanistan shall transform into a graveyard for the American Empire.”Bill Roggio, “Taliban vows to continue its ‘Jihad’ against US,” Long War Journal, August 22, 2017, https://www.longwarjournal.org/archives/2017/08/taliban-vows-to-continue-its-jihad-against-us.php.