Today's troubles are real, but not ideological: they relate more to policies than to principles. The postwar order of mutually supporting liberal democracies with mixed economies solved the central challenge of modernity, reconciling democracy and capitalism. The task now is getting the system back into shape.

Stagnating wages and growing inequality will soon threaten the stability of contemporary liberal democracies and dethrone democratic ideology as it is now understood. What is needed is a new populist ideology that offers a realistic path to healthy middle-class societies and robust democracies.

Michael A. Levi says Republicans and Democrats alike have touted the energy sector as the key to solving the United States' employment problems. They are both wrong.

The United States can no longer afford a world-spanning foreign policy.

Intervening militarily to save lives abroad often sounds good on paper, but the record has not been promising.

It's tempting to see the 9/11 attacks as having fundamentally changed U.S. foreign policy. It's also wrong.

Japan is undergoing profound changes that are empowering its political leadership at the expense of its bureaucracy.

After a devastating earthquake struck Haiti in January 2010, outside organizations flocked to the country to help it recover.

In uncertain times, grand strategies are important because they help others interpret a country's behavior.

Is international humanitarianism an act of charity or an act of duty? In fact, it is both -- a gift we have to give.

Henry Kissinger's new book argues that the United States should yield gracefully to China's rise; Aaron Friedberg's gives the opposite advice.

The recent turmoil in the Middle East may lead to the Arab world's first sustained experiment in Islamist government. But the West need not fear.

As the United States' relative power declines, will the open and rule-based liberal international order Washington has championed since the 1940s start to erode? Probably not.

Pakistan is unlikely to collapse anytime soon, but the imbalance of power between its civilian and military branches needs to be addressed if it is to become an effective modern state.

Latin American countries are increasingly looking for solutions among themselves, seeking friends and opportunities outside of Washington's orbit.

What does rise of the Tea Party movement mean for U.S. foreign policy?

With China's clout growing, the international community needs to better understand China's strategic thinking.

Do the tools of social media make it possible for protesters to challenge their governments?

It is currently fashionable to predict a decline in the United States' power. But the United States is not in absolute decline.

To meet the range of challenges facing the United States and the world, Washington will have to strengthen and amplify its civilian power abroad.