Part II You do realize that the Trans-Siberian Railway is a different gauge than the Japanese/Manchukuo railroad...Don't you. So, until the Japanese can convert the Soviet railway over to their gauge, the only trains that will be running are those graciously left behind by the Soviets. This is funny...If the Soviets "know the price of such venture." They are going to go for taking the prosperous, but undefended Manchukuo away from the Japanese, and let the Kwantung Army to rot in the useless Soviet cities. Yes, with supplies that are not going to China or the Pacific...Thank you very much. Also, Japanese submarines and surface ships are not strengthened, as their main point of focus is rather south and southeast of Vladivostok. Also, travel to intercept Allied ships heading for Petropavlovosk will be faster from Tokyo Bay than Vladivostok. Well, all of this is predicated on the complete collapse of the Soviet Union, which is unlikely, even with this new Japanese invasion. With the collapse of the Soviet Union and the opening of the Northeast Passage to Axis shipping traffic, there is absolutely no reason for Japanese cargo submarines...Still, this arctic route is only open for 3-4 months of the year(June-August/September). Ummm...The Type 3s did not begin to enter service until very late 1943, and certainly not in quantity at that time. By that time Japan was well on her way to losing the war. You also forget why the Type 3 was developed...To supply bypassed Japanese Army garrisons in the Pacific. Further, just because a Type 3 could carry 40 tons of cargo, does not mean that it can transport a 26 ton T-34 from German or Finnish Ports... Sailor - Sho-i Knightdepaix thinks we can fit a T-34 in here? Petty Officer - Anything is possible after the right amount of sake. Sailor - He must have drunk a whole case then. Japan could not keep their own forces supplied historically...Now you add yet another combat theater, and expect them to supply it and haul captured Allied material? Comical, truly comical. Oh, please... The Japanese had been using welding in tank design and construction beginning with the Type 1 Chi-He designed in 1941. The problem was a shortage of steel, and not any inherent problems with the design, that hindered the Type 1 production effort. Further, the Type 3 Chi-Nu was a rushed interim design, because of delays in the production of the Type 4 Chi-To. FYI, the Type 3 Chi-Nu went from design to production in 6 months. Germany's uber-tank designers are not going to help the Chi-Nu one bit...Unless said tank designers can continuously pull steel out of there woo-hoos. As I have said earlier...While Japan is busy constructing these uber-fortifications...The Red Army is busy in the south - cleaning out Manchukuo and driving to the Korean border. Suddenly, all those uber-fortifications in Far East Russia...Well, they don't seem so uber anymore.