According to a report by Yonhap News Agency on the 29th, South Korean officials stated that South Korea, the United States, and Japan held a tripartite joint missile defense exercise in international waters south of the Korean Peninsula on Tuesday (29th) in response to North Korea's rocket launch last week. Source: South Korean Navy reported that the exercise was held in the southern part of Jeju Island, South Korea. The South Korean Navy stated that the latest exercises include three destroyers equipped with the "Aegis" system - the South Korean destroyer "Kuriya Lear", the US destroyer "Benford", and the Japanese Maritime Self Defense Force destroyer "Hanoi". According to the report, the US Navy stated that this exercise is in response to "North Korea's escalating nuclear weapons and missile threats," including North Korea's rocket launch last week. The Yonhap News Agency reported that in the case of North Korea launching ballistic missiles, the focus of the exercises between South Korea, the United States, and Japan is to detect and track targets simulated by computers and share relevant information. The exercise also examined the information sharing systems of the three countries, as reiterated by the leaders of South Korea, the United States, and Japan at the Camp David summit earlier this month. The three countries will establish a system capable of real-time sharing of North Korean missile warning data by the end of this year. On the 29th, the Korean Central News Agency released a speech by North Korean leader Kim Jong un inspecting the Korean People's Army Naval Command. The speech stated that recently, leaders of the United States, Japan, and South Korea gathered together and announced the normalization and implementation of various joint military exercises among the three sides. Due to the rampant escalation of confrontation by hostile forces such as the United States, the waters off the Korean Peninsula have now become the world's largest gathering ground for war equipment and the most unstable nuclear war risk zone. According to previous reports by the Korean Central News Agency, North Korea's second military reconnaissance satellite launch in the early hours of the 24th failed. According to the report, in the early hours of the same day, at the Xihai Satellite Launch Site in Tieshan County, Hokkaido, North Korea's National Space Development Agency conducted the second launch of the reconnaissance satellite "Wanli Mirror 1" using the "Qianlima-1" new satellite carrier rocket. The first and second stages of the carrier rocket flew normally, but the third stage experienced an emergency explosion of the system during flight, resulting in the launch failure. The report also stated that the National Space Development Agency will identify the cause in the short term and conduct the third reconnaissance satellite launch in October this year.