[Matt Wiser]

None at all; the main objections are given in the thread that was from the previous board. While the Soviets may have had plans for an Alaska invasion, it's highly unlikely that those plans could've been implemented. Even if Stalin told his planners to draw up a plan for an invasion of Alaska, I'll bet they came up with one just to please the dictator and keep their asses out of a Gulag, even if the planners knew that any Soviet invasion of Alaska was practically impossible. Lack of basing infrastructure in the Soviet Far East (and those bases can be hit by carrier air), dependence on sea and air supply (which can be interdicted), few roads in Alaska, and U.S. Air and Naval power that would make the entire adventure a very bloody mess, and result in Soviet defeat. Even if some airborne and amphibious forces do get into Alaska successfully, without resupply of ammo and fuel, they're not going anywhere, and U.S. forces would eventually mop them up.