Female North Korean soldiers parade to mark the 60th anniversary of the signing of a truce in the 1950-1953 Korean War at Kim Il-sung Square, in Pyongyang. (Photo by Jason Lee/Reuters)

In this undated photo provided by the North Korean government, North Korean leader Kim Jong Un tries a weapon during his three-day inspection from Aug. 3 until August 5, 2023 at major munitions factories in North Korea. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: “KCNA” which is the abbreviation for Korean Central News Agency. (Photo by Korean Central News Agency/Korea News Service via AP Photo)

Members of the South Korean Confederation of Trade Unions (KCTU) perform with traditional Korean masks during a rally against the government's Labor Policy in Seoul, South Korea, 06 July 2023. South Korean Confederation of Trade Unions (KCTU) begen a general strike on a national scale from 03 July against the South Korean government's labor policy and against Japan's disposal of treated radioactive water from the Fukushima nuclear power plant into the sea. (Photo by Jeon Heon-Kyun/EPA)

North Korean leader Kim Jong Un (front) stands on the conning tower of a submarine during his inspection of the Korean People's Army (KPA) Naval Unit 167 in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang June 16, 2014. (Photo by Reuters/KCNA)

This photo provided April 14, 2023, by the North Korean government, shows North Korean leader Kim Jong Un, center, inspects what it says is the test-launch of Hwasong-18 intercontinental ballistic missile Thursday, April 13, 2023 at an undisclosed location, North Korea. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: “KCNA” which is the abbreviation for Korean Central News Agency. (Photo by Korean Central News Agency/Korea News Service via AP Photo)

North Korean soldiers wave along the Yalu River, near the North Korean town of Sinuiju, opposite to the Chinese border city of Dandong October 7, 2014. (Photo by Jacky Chen/Reuters)

In this Thursday, April 11, 2013 photo, North Korean female soldiers stand watch on the river bank of the North Korean town of Sinuiju, opposite to the Chinese border city of Dandong. (Photo by AP Photo)

A North Korean soldier kicks a pole along the bank of Yalu River near the North Korean town of Sinuiju, opposite the Chinese border city of Dandong, February 4, 2014. (Photo by Jacky Chen/Reuters)