Take all the Korean forces and focus them on Japan. Focus all other reinforcements on Japan. Hold position elsewhere until Japan is secured. Nuclear weapon strikes: 1 to Vladivostock(assuming you haven't hit it already, it has a high IC/MP value and core, probably is a major fleet station and air base. The other nuke, if the reactor is going to restart any time soon, strike the reactor, otherwise use it to assist in Japan IF NEEDED. And then only in a province which has already taken a nuclear strike.
Once Japan has been cleared, pull ALL forces and move to either Taiwan or Manilla depending on how risky that is with current sovjet air deployments. Once one is cleared, shift troops to the other and clear it.
Afterwards, if the Sovjets reinvade any area, smash them, this will strip them of divisions.
Exception, if Australia is on the brink of being annexed, focus all remaining forces to their support after Japan is re secured. IOW bypass the philipenes and Taiwan if it will save Australia.
Long term: Long term I see a constantly shifting defensive front whereby you are jumping between Japan and Australia constantly evicting Soviets invasion attempts until they finally run dry of reinforcements and troops. Nuclear strategy should be focused on cored high IC provinces, cored high MP provinces, and their nuclear reactor.
Other tactics: random landings on the Asian mainland could draw troops and slow down the reinforcement of their island invasions, this could hopefully prevent them from shifting the Korean front forces.
Roleplaying: I wouldn't use nukes in Australia or un-nuked parts of Japan, and I would try and retain as many allies as possible.
Reasoning: By focusing on one target at a time you can free up forces and perform force concentration while efficiently destroying the soviet forces.
Once Japan has been cleared, pull ALL forces and move to either Taiwan or Manilla depending on how risky that is with current sovjet air deployments. Once one is cleared, shift troops to the other and clear it.
Afterwards, if the Sovjets reinvade any area, smash them, this will strip them of divisions.
Exception, if Australia is on the brink of being annexed, focus all remaining forces to their support after Japan is re secured. IOW bypass the philipenes and Taiwan if it will save Australia.
Long term: Long term I see a constantly shifting defensive front whereby you are jumping between Japan and Australia constantly evicting Soviets invasion attempts until they finally run dry of reinforcements and troops. Nuclear strategy should be focused on cored high IC provinces, cored high MP provinces, and their nuclear reactor.
Other tactics: random landings on the Asian mainland could draw troops and slow down the reinforcement of their island invasions, this could hopefully prevent them from shifting the Korean front forces.
Roleplaying: I wouldn't use nukes in Australia or un-nuked parts of Japan, and I would try and retain as many allies as possible.
Reasoning: By focusing on one target at a time you can free up forces and perform force concentration while efficiently destroying the soviet forces.