I agree that T1 is too early, but I think the strategy could work well once you can devote 4 INF and a Carrier to the battle, that is T2-3–then you’d have yourself a party! Now whatever the US puts in the water in the Pacific gets sunk by the planes, USA West is in immediate danger of invasion (albeit breifly) and USA must make some difficult choices: leave the Japanese where they are and watch them get stronger and stronger, build a bunch of ARM in West USA to invade, or temporarily abandon the steady buildup of troops to Europe/Africa to march over and respond to the new threat! The only other way would be to use the fleet to sink the Japanese fleet and cut off the Alaskans–except WHOOPS!: the whole fleet is in the Atlantic! Hafta build another one!
Japan moves before USA, so a steady stream of 2-3 INF every turn would reapidly become a major thorn in the Western Allies side. If Japan becomes strong enough to march into Western Canada, the Western Allies could respond–by moving much-needed troops from Europe to help. And Japan can just back them up next turn with more.
A TR bridge could easily develop without compromising Asia, because returning TRs from Alaska could still “bridge” over troops from Japan before departing again next turn laden with more future Alaskans!
The strategy is an eventual loser, of course because the Allies will eventually be able to build up a force to knock you off the continent and Japan can never devote enough resources to trying to stay there to win. But until then Japan has served its purpose well–that is 1.) Harming USSR and 2.) Taking the pressure off Germany from the West. I think this idea is actually a very good one…
Just my $0.02…
Ozone27