And he called them out fearlessly.
Clinton is right: Trump would be a disaster on foreign policy. But her refusal to engage with the alternative offered by Sanders says more about her own war-driven approach than anything else.
If Donald Trump wins and pulls the U.S. out of its climate change commitments, some countries wonder, why should they keep their own?
Donald Trump should lose in November. But when you add a joker to the game, it throws off the odds.
The U.S.-Cuba deal proved the value of discreet, informal diplomacy. No shortage of other peace processes could begin the same way.
Israel and Saudi Arabia are burying the hatchet. For at least 10 reasons, that's not such a good idea.
A new book on conflict resolution provides a history of the subject and a counterfactual history of recent events.
It's not too late for the United States to help get Afghanistan back on its feet.
Young people have been pushed to the margins in South Korea -- can they transform the country's political system?
The Obama administration has one last shot at reforming the code of ethics for health care professionals working with the military.