He has also been involved in international diplomacy on nuclear non-proliferation.

He was particularly dedicated to nuclear non-proliferation and environmental protection.

So is a Russia willing to cooperate on nuclear non-proliferation and arms control.

On balance, "nuclear non-proliferation has been a success story," he said.

What is the Secretary of State doing about nuclear non-proliferation?

Amongst the important issues which were open for discussion included terrorism and nuclear non-proliferation.

All that argues for the vigorous pursuit of nuclear non-proliferation.

After viewing the city scene, museum visitors are invited to think about issues related to war and nuclear non-proliferation.

The Conference hosted an unprecedented gathering of leading international experts on nuclear non-proliferation.

"It has nothing to do with a desire to strengthen the nuclear non-proliferation," Lavrov said at a news conference.