dont be friend with neighbour countries every country need a way to grow on map invade capital of mukden dont trust to player who control to japan ıf japan wants to win he must to capture korea firstly research ınterceptor and submarine put a few submarine around of your country research tactical bomber build air bases 2 to every province which ones has factories build fortress against manchukuo and start attack to japan with tactical bombers invade all ısland
after this especially keep to produce light tanks tactical bombers and secondly artilleries ınterceptors ıf u dont have enough resource to produce land units keep produce submarine and put them every point on sea
after japan u can start to fight with manchukuo and communist china send light tanks near of city ıf u see units stop to tanks and destroy them with tactical bombers and continue to march build air bases in captured non core provinces and continue to march
