SPEAKING at the Woodrow Wilson International Centre in Washington, D.C., in early 2012, Henry Kissinger asserted that, since World War II, the US had entered wars without a clear exit strategy, and often sought a way out shortly after engagement. He highlighted the Afghan conflict as an example of a prolonged and unwinnable war. At that time, the US, despite being the world’s greatest military power, was bogged down in a conflict that had entered its second decade. It took another decade for thi