It starts with the forces in the size and probable locations there we in, in September 1938. Germany is still rearming so the Czechs will be a hard task to tackle, given they are better armed and on better terrain than the Poles were a year later against a much larger Wehrmacht. France and Britains military are in appalling share, but the Royal Naval has even more of an edge. The USSR is in the middle of the worst purges and is in no state to do much of anything, whilst America is totally asleep at the wheel. Japan is still inching forward in China, but is rapidly expanding its fleet.
Anyway, here it is -