Picture it. Japanese infantry column from Manchuria to Yakut. Aircraft based in both areas for defense/attack. Contested territories are Evenki or Novosibirsk. Japan can’t land planes in them yet. Say you take one of these on a turn. 8 infantry after battle with the Russians down to 5 or 6 infantry. US 2 armor counter-attack from Sinkiang knocks it down to 3 or 4 infantry. Russia may or may not counter-attack. If they don’t at this point, they build reserves in Russia (up to 6 infantry). If they do, they retake the territory. If Russia didn’t attack, the UK’s 3 armor from India knocks the Japanese force of 3 or 4 infantry to 0 or 2 infantry. Japan couldn’t possibly hit the Russian capitol with only 2 infantry and aircraft. So they non-combat move or attack an enemy force. If Russia took the territory back, the UK re-enforces the Russian infantry with the 3 armor. Russia, with this system, can attack every other turn greatly helping them. Since Japan’s focus is all Manchuria-Yakut-Evenki/Novosibirsk, they lose China, French-Indo-China, and Kwangtung to the Allied IC’s while fighting the initial Russian defenses in the Soviet Far East and Yakut. This is where Japanese NP stagnates, they lose and gain at the same time. NP never gets higher than 27, only supporting 8 infantry per turn. Any moves away from landing in Manchuria will severly weaken Japanese chances. The Allies can easily hold this arrangement until 5 to 6 UK armor come from Africa per turn. Now your talking at least 6 or 8 UK armor per turn (depending on NP - as high as 38). Plus 2 US armor from Sinkiang and Russian infantry (as many as needed).
Japan is in the death march to Russia in this losing situation.
The early first turn IC in French Indo-China opens the 2nd front in the south. The remaining units in the region will compensate for the lack of IC production in turn 2. Take Allied Asian IC’s if they dare place them. Even though your Manchurian offense is down to 4 infantry or armor, the aircraft will compensate for this (3 planes per front). You don’t have the Allied delaying armor to deal with. You have armor to deal with UK African forces. You have forces to deal with Russians by themselves. Most importantly, your NP is as high as you can get it. This gives you your 2nd IC or more transports.
The next objective is to build up forces to take the Russian capitol before the US can build powerful forces in Europe. If the German player is any good, this CAN happen…