j1 purchase 3 transports, move sz33 units to sz6, capture french indo china and 4 available chinese territories.
j2 purchase 5 transports, declare war, capture alaska with 1tank, 3art, 8inf via sz1 with 6 loaded transports, land all air in japan
j3 move 10inf from japan to alaska, move all air units to alaska(except 6 figs on carriers in sz1)
j4 attack west usa with 18inf, 3art, 1tank, 14figs, 10tacs, 4bombers
usa1 purchase 5inf, move phil air to guam, move all ground and air units to west usa
usa2 purchase 8inf, move guam air to wake
usa3 purchase 10tanks, move wake air to west usa
anzac1 move tran to queensland
anzac2 move 4 figs to hawaii, move tran to sz27
anzac3 move 4 figs to west usa and unload 2inf to west usa
west usa battle is
japan attacking with 18inf, 3art, 1tank, 14figs, 10tacs, 4bombers
allies defending with 22inf/art, 11tanks, 8figs, 3tacs, 3bombers
japan wins 35% of the time
with optimal purchases and moves on both sides(only considering a kill usa first strategy) japan has 35% chance at capturing usa. looks like the game designers did a great job at making kill usa a viable strategy that is not over powering