North Korea said it detonated a hydrogen bomb designed for a long-range missile on September 3 and called its sixth and most powerful nuclear test a "perfect success", sparking world condemnation and promises of tougher USA sanctions.
A North Korean foreign ministry official, however, ruled out a meeting with U.S. Vice President Mike Pence, who will be representing the U.S.at the opening ceremony.
Troops, missiles and tanks rolled into North Korea's historic Kim Il Sung Square Thursday in a highly anticipated parade of military might on the eve of South Korea's Winter Olympics. He added his hopes that it becomes "a venue that leads to dialogue for the denuclearization of the Korean Peninsula".
Lawmakers from the US's two main parties have joined a newly established congressional body tasked with fostering direct contact with their South Korean counterparts, one of only four such bipartisan congressional study groups in the United States legislative branch.
North Korean tyrant Kim watched on as thousands of troops - including some bizarrely dressed like toy soldiers - rolled past in capital Pyongyang.
In this image made from video by North Korea's KRT, a military parade is held in Pyongyang.
The issue began with reports that Samsung is scheduled to hand out special "Olympic edition" Galaxy Note 8 phones to competing athletes this year, an ongoing tradition for the South Korean technology giant and longtime Olympics sponsor.
"It looks like North Korea had potential reaction from the global community in mind and toned down the scale and message of the event a lot", said Lim Eul-Chul, a North Korean studies professor at Kyungnam University.
The North Korean military demonstrated at least four launchers with Hwasong-15 ICBMs painted in their typical black hue and also several prime movers with Hwasong-14 intercontinental ballistic missiles.
Senior Pyongyang foreign ministry official Cho Yong Sam said the North had "no intention" of meeting U.S. authorities during the trip.
North Korean officials have no intention of meeting their United States counterparts during the opening ceremony of the Winter Olympics in Pyeongchang, South Korea.
Pence was meeting President Moon on Thursday evening. Vice Presidenet Pence landed in the Osan Air Base just a few hours ago and the trip here to the Blue House is the very first on his list of to-do's during his three-day stay in the nation.
Kim is also dispatching his younger sister, Kim Yo Jong, to attend the opening ceremony. Mr Pence said earlier he wanted to "make sure North Korea doesn't use the powerful symbolism in the backdrop of the [Games] to paper over the truth about their regime".
The stance on North Korea of President Donald Trump, whose war of words with Kim Jong Un has quieted lately, has not changed, White Press Secretary Sarah Sanders said most recently in December.