Evening Trooper.
The rules are 2nd Edition, so the Japanese or Russians can break the Pact and attack each other. It will simply bring into play the Mongolia rules.
I think it would benefit Russia, as Japan only has a handful of Ground units. I suppose they move to the border and wait.
I am afraid te Tunisia thing is unclear. It has to belong to one or the other. I simply put the Mech in Algeria. It might be an error.
The Japanese Sub can attack or flee.
I think an attack with Air and the other Naval units make sense, as I wanted to eliminate the US’ only Transport.
I went with 4 Naval and 2 Air. You will lose all in a counterattack, so I thought a nice tight
result was called for.
Hope that helps.