Anti-Japanese War: Double-Crossing 1931, Handing over to the Country at the Beginning

[Send it over to the country] + [Double portal] + [Dimensionality reduction strike] + [Weapon of a great power] + [Make up for regrets] "Iron armor marches to the east, fierce tiger defends the country, and will not return it until it is broken!" Lin Mo woke up and went through the door twice, handing over to the motherland at the beginning! Leading the Motherland's Heavy Armored Synthetic Brigade back to 1931, everything changed on this day...