Henry Kissinger: “foreign policy is the art of the possible and the science of the relative”

History doesn't repeat itself but it rhymes.

The United States must address all these questions at a moment when many in the wider world believe Americans have voluntarily stepped back from strong leadership.

We have successfully defeated the Islamic State in Iraq and Syria (ISIS), but the question now is the succession, what happens next.

The United States cannot by itself solve every crisis that exists in the world, painful as these crises may be. And one of the philosophical questions that has to be answered is where we engage ourselves beyond moral condemnation and to…