International efforts, such as the Paris Agreement, aim to reduce greenhouse gas emissions. But experts say countries aren’t doing enough to limit dangerous global warming.

The U.S. State Department's Clean Network program, created in response to China's expanding capabilities in cyberspace, recalls the the warning George Kennan gave about the Soviet Union in his famous…

The Trump administration’s case for invoking “snapback” sanctions against Iran for violating the nuclear deal rests on shallow arguments that have left Washington alone in efforts to pressure Tehran…

The U.S. Navy turns 245 years-old today. On October 13, 1775, the Continental Congress commissioned two ships, each with eighty sailors, “for intercepting such transports as may be laden with warlike…

The Trump administration's newly issued directive on cybersecurity policy for outer space is another small step towards taking cyber threats to U.S. space systems seriously.

An insider’s perspective on why U.S. policymakers repeatedly underestimate the costs and consequences of intervention to both the United States and the people of the Middle East.