Meanwhile, a policy that recommended improving Japan's navigational skills to communicate with foreign nations, advocated by Uta NAGAI of Choshu clan, was approved by both the imperial court and the bakufu, and emerged as a tool to unite the court and the shogunate.
いっぽう、長州藩の長井雅楽が主導する「航海遠略策」が朝廷・幕府の賛同を得て、公武一和の具体策として急浮上する。