霍尔木兹海峡封锁构成日本“存亡危机”吗？

Core Viewpoint - The article discusses the potential implications of the Iranian blockade of the Strait of Hormuz on Japan's energy security, highlighting the legal framework for Japan's collective self-defense and the historical context of similar situations [2][4][6]. Group 1: Legal Framework and Collective Self-Defense - The concept of "existential crisis situation" was established during Shinzo Abe's administration in 2015, allowing Japan to exercise collective self-defense under specific circumstances [4]. - An "existential crisis situation" is defined as a state where Japan's survival is threatened due to military attacks on closely related countries [4]. - The Japanese government has previously considered the blockade of the Strait of Hormuz by mines as a potential scenario for exercising collective self-defense, although it has never been enacted [2][4]. Group 2: Energy Dependency and Risks - Over 90% of Japan's crude oil imports depend on the Middle East, with 80% of these shipments passing through the Strait of Hormuz [6]. - A blockade of the Strait by mines would severely impact Japan's energy supply, prompting potential collaboration with the U.S. for mine-clearing operations [6]. - The Japanese government assesses the likelihood of such a scenario as low, with past incidents not leading to the activation of collective self-defense measures [6]. Group 3: Government Response and Current Situation - As of March 2, the Japanese government has not classified the current situation as a significant impact event under security laws, indicating a cautious approach to the evolving circumstances [4][6]. - Prime Minister Sanna Takashi stated that the government is gathering information on the situation, emphasizing the need for individual assessments based on actual events [6]. - Historical precedents show that Japan has refrained from activating collective self-defense in past threats to energy supplies, indicating a pattern of cautious response [6].