二战结束之后,作为战败国的日本百废待举,政治上没有自主权,军事建设上也主要迎合美国的战略意图。60年来,日本航艇的发展始终围绕一个不变的主题,那就是反潜,除了要保护本国航线的安全,也防止中国潜艇前出太平洋,成为美国在亚太地区最为倚仗的帮手, After World War II ended, Japan, as a defeated nation, had no choice but to exercise any political independence and the military construction mainly catered to the strategic intention of the United States. Over the past 60 years, the development of Japan’s navigating craft has always been centered around a constant theme. That is, anti-submarine warfare. In addition to protecting the safety of its own routes, it also prevents the Chinese submarines from leaving the Pacific Ocean and becomes the most reliable helper the United States relies on in the Asia-