The United States and NATO have delivered written responses to Russian demands for security guarantees, rejecting Moscow’s insistence on a withdrawal of NATO forces from Eastern Europe and an assurance that Ukraine will never be granted membership in the alliance. That firmly puts the ball back in Russian President Vladimir …

Assessing the Biden administration’s performance in the Middle East at the one-year mark requires some careful metrics. Should the benchmark be a comparison to the turbulent Trump years, or to earlier times when U.S. diplomacy was defining the regional agenda and, on occasion, making a meaningful contribution to achieving peace? …

At its height half a decade ago, the Islamic State was among the most feared armed organizations in the world. The infamously brutal group had at one point captured and established governance of more than a third of Iraq and large swaths of Syria. But that shocking, sudden rise to …