how does the Soviet-Japan non agression pact work in G40 2nd edition?  (don’t have the rulebook)

thx Minor Threat for the clarification.  Now, same scenario.  If the Japanese kill off the US scrambled planes, can they then continue with the amph assault?  (assuming of course the tranny survived.)

per alpha 2 rules, fighters can now scramble from a land territoriy with an air base, and adjacent to SZ being attacked. the  operative phrase here is SEA ZONE BEING ATTACKED. so if Japan attacks phillipines w/ AC + 2 fighters, 1 tranny + 2 INF, and the sea zone around the phillipines is empty of allied ships,  then US cannot scramble fighters, since there is no attack on the sea zone.  am I correct?  or can fighers be scrambled against Japan navy anyway.  even though the sea zone isn’t being attacked?

I have A&A on order, will be here in aweek or two.  but i’ve been trying to figure out what canada does.  several provinces have ipc value;  what do they do?  does UK collect the ipc’s?