This implies that Shigeyoshi, who had a personal connection with Dutch interpreters, felt a crisis of the country due to the appearance of powerful foreign countries around Japan and further continued the military research.
オランダ通詞と独自のパイプを持っていた茂義が、日本周辺への列強の出没に危機感を覚え、さらに軍事研究を続けていたことが伺える。