In fact, the general's officialdom in the first half of his life was relatively smooth, basically smooth sailing, and he has been promoted since he joined the army. If he had followed this path, he would have become a general in the army until Japan launched a war of aggression against China. Originally, Japan's ambition was relatively large, and it planned to destroy China in three months. However, the Asian battlefield was not as fast as they thought, so it gradually became an anxious battle.
Originally, the Japanese wanted to invade China mainly because they wanted to invade more materials to develop themselves. Japan itself is an island country with a small area, so they need more materials to develop, but it gradually turns out that they are consuming more materials for this war. At this time, they directly pointed the finger at the United States, but they did not dare to act directly. After all, the status of the United States was also very strong at that time.
Later, they thought of attacking Pearl Harbor directly, which could deal a heavy blow to the American army. At this point, Isoroku Yamamoto directly led the troops in an attempt to directly destroy the main force of the US Navy. At this time, Nan Yunzhong really came in handy, because that's what he studied at school. Of course, the Japanese attack on Pearl Harbor was also overwhelming, and the United States suffered heavy losses directly, so he was later chased as a general.