At the beginning of the war of aggression against China, after Japan occupied the whole northeast, it plotted a plan called "puffer fish" with German Jews.

Zionists and Japanese militarists had planned to establish a Jewish state in Chinese mainland. The plan named "Puffer" was aborted due to the obstruction of Britain and the United States and the persistent stubborn resistance of the people of China. Br> The puffer fish project was named puffer fish because puffer fish is delicious, but it is highly toxic. The Japanese use puffer fish as a metaphor for Jewish immigrants. On the one hand, it is profitable, on the other hand, it is very dangerous, just like puffer fish, which needs detoxification before eating its delicious food.