These Olympics will be held in PyeongChang, South Korea from 9 to 25 February 2018. PyeongChang is a mountainous area of South Korea just 100 km south of the tense Demilitarized Zone (DMZ) with North Korea.
If any of North Korea's frequent nuclear/missile threats occurred in February this could wreck the usual good feelings of the Winter Olympics. Mass evacuations of foreign nationals is a possibility, however slight.
This deals with the sensitivies of:
1. promising North Korea that no military exercises will be held in South Korea prior to the February 2018 Winter Olympics in South Korea. Summary of a January 2018 Washington Post report: Trump and South Korean President Moon Jae-in have agreed to postpone the large annual Foal Eagle Exercise until after the Winter Olympics to reduce tensions with North Korea.
2. North Korea might decide to feel cheated that "secret" plans were reported in the Japanese media (below) in January 2018 concerning international preparations made in South Korea (SK) for evacuating foreign nationals in case of high tension or conflict with North Korea (NK).
From the following it appears there is a high degree of ill-feeling on security issues, between and within Western delegations (including Japan and SK) in dealings with NK. The Chinese and Russians must be perplexed.]
On January 21, 2018 Anonymous translated [right-click mouse] page 2 of a Japanese language Gendai article of January 20, 2018. Pete did further translation for context:
"In a period of emergency in the Korean Peninsula, when President Trump has taken military action against NK, concrete measures to rescue US, UK, Canadian, Australian, French and Japanese and Americans nationals from SK are being planned
See Osan Airforce Base where the international evacuation meeting was held.
In November 2017, the first meeting of Japan and five members of UN Command in SK (US, UK, Canada, Australia and France) was held secretly at Osan US Air Force (USAF) Base 64 km south of Seoul to discuss rescue/evacuation planning for their foreign nationals.
[Osan hosts US 7th Air Force Headquarters].
"It was a military official consultation and SK was excluded because of possible information leakages to NK through the SK "Blue House"."
[the "Blue House" is a large complex that is the Executive Office and Official Residence of SK President Moon Jae-in]
Japanese attendance included Counsellor Level officials from the National Security Bureau of the Cabinet Secretariat and uniformed staff from the Japanese Ministry of Defense. They were transferred by USAF aircraft travelling from USAF Base Yokota (Tokyo) to Osan USAF Base.
See Pyeongchang Olympic site and Busan+Inchon evacuation ports (Map courtesy worldatlas)
Numbers of the foreign nationals in each region of South Korea, identified by the US, were displayed on a huge screen and projector in the November 2017 meeting room at Osan Base. Measures for transporting the nationals to Busan Port and the Port of Incheon via air, land and sea were explained.
The US State Department informed SK diplomatic and security authorities who had been excluded from the November 2017 meeting. SK reacted by complaining strongly and could [did?] attend the second meeting held in December 2017.
Until [November 2017?] these kinds of meetings have only been held secretly between the US National Security Council, US Department of Defense, Japanese NSC and Japanese Ministry of Foreign Affairs. The US State Department and Japanese Ministry of Defense have been excluded because the security of their information management is considered suspect.
"Under multilateral talks discussing the situation in North Korea, it can be understood that leakage of confidential information is a deadly and serious problem."
Translated by Anonymous and by Pete.