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To understand how a new world war might play out, it's important to remember just how powerful the US really is.
Headline of a planned summit between Kim Jong Un and Donald Trump.
AP Photo/Ahn Young-joon
A former US Department of Defense and State Department official explains why a hard-line approach on North Korea will likely fail, as it did with Iran.
North Korean leader Kim Jong Un.
A scholar who has profiled leaders like Saddam Hussein and Vladimir Putin says there is a method to understanding the madness.
U.S. President Donald Trump and North Korean leader Kim Jong Un featured in a South Korean news program.
What scholars know about the past, present and future of the US' relationship with North Korea, as the two countries' leaders prepare to meet.
Thanks to South Korea, there is a chance for peace with North Korea. Whether the Trump administration can take it is another matter.
Could the solution to a nuclear North Korea lie in arbitration?
Trump and Kim are due to meet this spring. But if these talks fail could international arbitration provide - as it has in the past - an alternative way out of the North Korean crisis?
Watching from the south.
A year ago, productive north-south talks seemed inconceivable – but with the US tripping over its own feet, things are changing.
Nuclear reactors line the bank of the Columbia River at the Hanford site in 1960.
During the Cold War, the US built nuclear weapons at a network of secretive sites across the nation. Some are still heavily polluted and threaten public health today.
Warning sign at Kerr-McGee uranium mill site near Grants, N.M., December 20, 2007.
AP photo/Susan Montoya Bryan
The Trump administration's push for 'energy dominance' could spur a new wave of domestic uranium production. A scholar describes the damage done in past uranium booms and the visible scars that remain.
North Korean women’s ice hockey players.
North and South Korea explained in five questions and answers.
With artificial intelligence weapons on both sides, are we in a new cold war?
As tensions between the US and Russia escalate, both sides are developing technological capabilities, including artificial intelligence that could be used in conflict.
A flag with Korean peninsula unification symbol at the opening ceremony of the Sydney 2000 Olympic Games.
North Korea has taken up the South's invitation to the Olympics, but a quick look at the history of North-South talks suggests that unity is not as close as it may seem.
Cleanup crew search for radioactive debris.
U.S. Air Force
In what came to be known as the Thule incident, an American bomber crashed in Greenland, spreading radioactive wreckage across 3 square miles of a frozen fjord. Denmark was not happy.
North Koreans cheer in this November 2017 as they watch a news broadcast announcing Kim Jong-un’s order to test-fire the inter-continental ballistic missile Hwasong-15 at the Pyongyang Train Station in Pyongyang, North Korea.
(AP Photo/Jon Chol Jin)
Military options should, and must, be on the table if diplomacy fails to compel North Korea to de-nuclearize.
Malcolm Turnbull: not at all in the middle.
Canberra's attitude to nuclear weapons has always been riddled with contradictions. Homegrown nuclear campaigners winning the Nobel prize have put the cat among the pigeons.
People attend a torchlight procession in honour of the International Campaign to Abolish Nuclear Weapons in Oslo.
The Turnbull government has refused to congratulate ICAN on winning Australia's first homegrown Nobel Peace Prize. In doing so, it is working against international efforts to ban nuclear weapons.
For the first time, human beings harnessed the power of atomic fission.
By figuring out fission, physicists were able to split uranium atoms and release massive amounts of energy. This Manhattan Project work paved the way both for atomic bombs and nuclear power reactors.
An insight into Iranian media and public opinion in the aftermath of Donald Trump's speech decertifying the 2015 Iran Nuclear deal.
Donald Trump’s justification for decertifying the Iran nuclear deal stems from his view that Iran is violating the deal’s spirit.
Aside from vague threats of violence and suggestions he could 'renegotiate' the Iran nuclear agreement, Donald Trump has provided little in the way of coherent or viable policy options.
Tilman Ruff (back centre) and a group of ICAN campaigners protest outside Australia’s permanent mission to the UN at Geneva.
Tim Wright, ICAN
A grassroots movement with its genesis in Melbourne has won the Nobel Peace Prize.