The United Nations Security Council on Thursday unanimously adopted a resolution "to seek a safer world for all and create the conditions for a world without nuclear weapons."

This strong and historic resolution was adopted at the first UNSC summit on nuclear nonproliferation and nuclear disarmament, attended by the leaders of both the five permanent UNSC member states — the United States, Russia, Britain, France, and China, which are nuclear-weapons states — and the nonpermanent member states, which include Japan. The resolution is an important step toward making efforts to create a nuclear weapons-free world irreversible.

It is significant that the resolution was sponsored by the U.S., since the U.S. and Russia combined possess some 90 percent of the world's nuclear warheads. Moreover, the summit was chaired by Mr. Barack Obama, who became the first U.S. president to chair a meeting of the 15-nation council.