In Seoul, South Korea on Monday, President Obama enthused once again about his vision of a world without nuclear weapons.

CENTERFORSECURITYPOLICY: Leading With No One Behind

We welcomed the U.S. commitment to achieving general and complete nuclear disarmament and our common vision of a world without nuclear weapons.

WHITEHOUSE: Joint Statement of the 4th ASEAN-U.S. Leaders' Meeting

As we work to reduce nuclear weaponry and to realize the vision of a world without nuclear weapons, we recognize the necessity to maintain the safety, security and reliability of our own weapons.

CENTERFORSECURITYPOLICY: Stopping START