In this file photo taken on on Oct. 4, 1987, a Soviet army officer presents ammunition rigged with chemical agents during a visit by Western diplomats and journalists to a chemical weapons research facility in Shikhany, Saratov region, Russia. The facility in Shikhany led the efforts to develop Soviet chemical weapons, including Novichok-class nerve agents.
John Thor Dahlburg/ AP Photo
Novichok are a set of molecules that are some of the most deadly nerve agents ever developed. They are almost impossible to detect and clean up.
Kim Jong-un and Moon Jae-in embrace during the groundbreaking summit between the North and South Korean leaders earlier this year.
South Korean president's office handout
At this stage one can only judge the atmospherics and optics of the summit, and on that basis, Beijing and Pyongyang have plainly come out ahead, while Tokyo and Seoul seem to have been overlooked.
Looking at the agreement, it appears that Kim Jong-un has outmanoeuvred Donald Trump.
North Korean Chairman Kim Jong-un and US President Donald Trump were all smiles today, but a meaningful agreement is still a long way off.
AAP/Kevin Lim/The Straits Times/SPH
One noticeable omission was any mention of “complete, verifiable, irreversible denuclearisation” - whether this was strategy or capitulation on President Donald Trump’s part remains to be seen.
Moon Jae-in meets Kim Jong-un on the Korean border.
EPA/Korea Summit Press Pool
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North Korean leader Kim Jong Un, left, and South Korean President Moon Jae-in at the border village of Panmunjom in the Demilitarized Zone, April 27, 2018.
AP/Korea Summit press pool
North Korean leader Kim Jong Un’s risky unreliability will diminish as his country builds ties with South Korea. So Korean unification may be a better focus for Tuesday’s summit than denuclearization.
The long-awaited summit between North Korean leader Kim Jong-un and US President Donald Trump will take place on Tuesday, with much at stake.
AAP/The Conversation
The highly awaited summit has the potential to lead to real peace on the peninsula- but only if both countries can find a common interest on which to build an agreement.
People pray during a special service to wish for a successful inter-Korean summit and peace on the Korea peninsular at a church in Seoul.
AP Photo/Ahn Young-joon
Diane Winston, USC Annenberg School for Communication and Journalism
With almost 30 percent of South Koreans either Protestant or Catholic, faith plays a big role in how people think about relations with the North.
Having cancelled the summit with North Korean leader Kim Jong-un on June 12, US President Donald Trump says it may be back on again.
AAP/Chris Kleponis/pool
Having called the June 12 summit off, US President Donald Trump says it might be on again. But at what cost will all of this come to the serious issue of denuclearisation?
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North Korean leader Kim Jong Un, left, and South Korean President Moon Jae-in take a big step together on April 27, 2018.
(KoreKorea Summit Press Pool via AP
There was much that was agreed to at the Korean summit - but still a lot yet to be worked out. The will now shift to the hotly-anticipated meeting between Donald Trump and Kim Jong-un.