what if after you move all your fleet in India’s seas, during J2, the american player moves all his fleet 1 sea zone from sz6?
I don’t see this as a real problem. USA can’t have an amphibious attack strong enough to take Japan. As for navy, I never (ever) saw a USA able to hold in z6 long… with Japan’s planes, I would just load 2 fresh carrier in z6 along with few DD (as ZEH said, kept behind) and additionnal 3 planes in Japan. It should do it to repel USA Navy.
Keeps them off india for a turn however, very helpful