With the demise of New START creating a dangerous legal vacuum, Washington and Moscow must abandon outdated Cold War assumptions and forge a modern, shared definition of strategic stability.

Climate hushing” is one reason why so many politicians who oppose Trump administration policies have been going silent on ...

President Macron's new concept of 'dissuasion avancée' marks a revolution in French nuclear policy. With this, Paris seeks to ...

Editor’s note: This story was originally published by The Guardian. It appears here as part of the Climate Desk collaboration. Antarctica’s west coast is missing an area of winter sea ice the size of ...

Americans are now getting more of their electricity from solar than from coal—a whopping big change from the early 2000s, when coal was king. And solar’s rise is accelerating, provides more than twice ...

In 1963, John F. Kennedy proved that informal, one-sided moves could successfully defuse tensions with hostile adversaries. Today, as a multipolar arms race looms, JFK's blueprint offers a vital ...

Etienne Marcuz is a senior analyst on strategic armaments and an associate fellow at the Fondation pour la Recherche Stratégique (FRS) on issues related to deterrence and missile defense.