President Yun Seok-yeol immediately convened the National Security Council (NSC) in connection with North Korea's ballistic missile launch on the morning of the 25th.
It is the first armed protest in four days of the Korea-US summit, the second provocation immediately after the inauguration of the Yun Seok-yeol government, and the 17th armed protest this year.
The presidential office said, "President Yoon ordered the holding of the NSC presided over by the president."
President Yoon also went to work at the Yongsan Presidential Office around 7:10 am.
It is the first time since the inauguration of the new government on the 10th that the President's NSC will be held.
At the time of North Korea's ballistic missile launch on the 12th, a 'National Security Office Inspection Meeting' was held presided over by Kim Seong-han, Director of the National Security Office.
It is interpreted to mean that North Korea is taking the latest ballistic missile launch seriously.
The Joint Chiefs of Staff said on the 25th that they had detected ballistic missiles fired by North Korea from the Sunan area in Pyongyang at 6:37 am, 6:42 am, respectively.
Military authorities are investigating specific specifications such as the range and altitude of these three ballistic missiles.
The possibility of an ICBM is raised as the South Korean and US intelligence authorities have been paying close attention to the development of intercontinental ballistic missile (ICBM) preparations in the Pyongyang Sunan Airfield area until recently.
Depending on the level of North Korea's launches, it is also expected that joint countermeasures between South Korea and the US will take place for the first time in about 4 years and 10 months since July 2017.
In case of an ICBM provocation, attention is also paid to whether the US will dispatch strategic assets.