South Korea has a very particular part to play in handling Pyongyang, but Moon Jae-in has a different one in mind.
The international community has been trying to stop North Korea from developing long-range missiles for decades. So how did North Korea get one?
The use of nuclear weapons – arguably the most devastating of all weapons of mass destruction – is currently not necessarily prohibited under international law.
Claims of the destructive powers of nuclear weapons have, for good reasons, been greatly exaggerated.
A precise, lethal chemical weapon hit in a foreign capital is a reminder that North Korea knows what it's doing.
People have been rising up against nuclear weapons ever since the first one was used – and it hasn't been for nothing.
A useful avatar for threats both real and perceived, the notion of a pan-Islamic nuclear weapon has little to do with reality.
One of the world's worst nightmares could in fact be an unexpected opportunity.
The global nuclear non-proliferation regime depends on American leadership. What if Donald Trump loses interest?
In early December, the nations of the world are poised to take an historic step on nuclear weapons. Yet Australia sticks out like a sore thumb among Asia-Pacific nations in arguing against change.