In Afghanistan, as in Vietnam, it simply does not matter whether the United States wins or loses. It makes no sense for the Obama administration to expend more blood and treasure to vanquish the Taliban. The United States should accept defeat and immediately begin to withdraw its forces from Afghanistan.

Of course, President Obama will never do such a thing. Instead, he will increase the American commitment to Afghanistan, just as Lyndon Johnson did in Vietnam in 1965. The driving force in both cases is domestic politics. Johnson felt that he had to escalate the fight in Vietnam because otherwise the Republicans would lambaste him for “losing Vietnam,” the same way they accused President Harry Truman of “losing China” in the late 1940s.

John J. Mearsheimer