United States can afford to stay in Afghanistan for as long it takes to win.
U.S. national security depends most fundamentally on our economic strength. An open-ended commitment in Afghanistan demands vast resources better used at home and for purposes that contribute effectively to our security. It depletes our military and distracts our political leadership from more pressing challenges. And it adds massively to federal deficits and to the national debt, without building anything of enduring value for future generations.