Japan vs Allied Subs

[Anonymous]

Is there any way for Japan to pursue allied subs?  They simply submerge and then are back next turn to hassle again.  Allies can double punch Japan's subs, but what can Japan do?

[Mr Ghoul]

Buy more Destroyers. Japan has to be a little more defensive with their Navy after the first few turns.

[bossk]

Just about the only way around your problem is to destroy all of the allied subs before tthey have the chance to submerge.  That's right, overwhelming numbers, which is very difficult to accomplish later on.

[TG Moses VI]

I like submarines...