
By bringing the United States’ pointless military campaign in Afghanistan to a close, U.S. President Joe Biden has delivered on his desire to end the “forever wars.” But as Steven Cook pointed out in Foreign Policy last week, the phrase “ending forever wars” offers little guidance for how the United States should now approach key national security issues. To do that, the country needs to draw the right lessons from disappointments of the past 20-plus years and identify the principles and goals that should guide foreign- and national security policy from this point forward.