The series Wolf in the Blue Ocean published by Zhibingtang introduces the rise and fall of German submarines. Because the German submarine force is mainly used for all kinds of diplomatic actions, the book mentions the fleet information of Britain and the United States aiding the Soviet Union many times. There are five volumes in this book, and the fifth volume will be published soon.

There is also a book called Secret Archives of World War II, written by Boris Dimovic sokolov and published by China Radio and Television Press. He also said a lot about helping the Soviet Union.