(1) What is AI sovereignty? Why is it important? The ``AI Sovereignty'' that the government aims to establish refers to ideas such as ``avoiding excessive dependence on specific countries or companies and maintaining a situation in which various AIs can be used continuously (strategic autonomy)'' and ``strengthening the situation in which Japan's presence is needed by leveraging its unique AI development capabilities (strategic imperative).'' AI, which is evolving rapidly, has come to occupy an important position among information technologies...