During Joe Biden's visit to Seoul, South Korea's newly appointed President Yoon Suk-yeol and his US counterpart are expected to visit a key Air Force operations centre. According to report, the combined visit was planned in response to North Korean provocations such as a long-range ballistic missile test and a nuclear test. The US President arrived in South Korea on Friday for a three-day tour.

Both presidents will conduct a visit to the Korean Air and Space Operations Center (KAOC) at Osan Air Base in Pyeongtaek on Sunday, May 22, according to the South Korean presidential office. During their visit, Suk-yeol and Biden will be informed on the KAOC's functioning, according to the statement. During Biden's three-day visit, Presidents of both countries want to have a combined schedule under the theme of "economic security and security," according to Kim Tae-hyo, the first deputy chief of South Korea's presidential National Security Office.

In the meantime, North Korean leader Kim Jong-un has threatened to use nuclear weapons as a preemptive strike, and the regime has conducted a series of missile tests. Pyongyang would "continue to improve and build nuclear capabilities at the fastest rate," Kim Jong declared during the military day parade on April 25. As part of its weapon development programme, North Korea has been quickly increasing its missile testing. The country's Supreme Leader Kim Jong has largely witnessed the launch of such missiles, from hypersonic to short-range, instantaneous, and long-range missiles.

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