The Japanese military is not that much stronger that the south korean military. The ROK ground army is better than Japan's. With the new ships, The ROK will be able to have a navy comparable and almost equal to the navy of Japan. I think however it is a great idea for the ROK to obtain a modern Blue Water Navy. Their new Sejong the Great class destroyers are amazing ships. They are known as "Super Burkes." The ROK needs a strong navy to fend of N. Korea and the PRC.