Remember when American presidents set out to do big things in the world?

That was when denizens of the Oval Office had one powerful attribute: ambition. And that’s exactly what President Barack Obama is lacking today: a desire to shape world events to America’s liking, and a willingness to take big risks to make that happen.

No wonder he is making little progress on the enormous foreign policy and national security challenges facing the United States. The less ambition an administration has, the harder achieving anything becomes.

While trying to tackle hard problems can make them more complicated, not tackling at least some of them in a serious way increases the likelihood that they will get worse. Success will come, if at all, against long odds. Without trying, failure is guaranteed.

To read the full op-ed, click here.