Ash Carter: “That deal is an important step, one brought about by the leadership of President Obama.”

China has and shares important responsibility for this development and has an important responsibility to reverse it.

The international community, United Nations Security Council and especially the other six-party powers must hold North Korea accountable for this latest act and heighten the pressure on North Korea.

It absolutely is. That's why we quadrupled the European Reassurance Initiative.

The goal of United States policy in Syria is to end the Syrian war--civil war.