The great victory of Taierzhuang made Li Zongren famous throughout the country, and as a famous anti-Japanese general, Li Zongren's great name was known to everyone, but few people knew that Li Zongren was also a master of plotting rebellion, he had personally plotted against a traitor, and killed more than 25,000 Japanese troops based on the intelligence of "traitors".

This "traitor" called Xia Wenyun, who was opposed by Li Zongren, was not very famous in the secret service circle, nor was he a person of military or central unification, but a lurker who had direct one-line contact with Li Zongren.
Xia Wenyun was a native of Dalian, in 1919, at the age of 14, he was admitted to the Lushun Normal School, excelling in all subjects, so he obtained the opportunity to study in Japan at public expense, and in 1925 he was admitted to the Hiroshima Higher Normal School in Japan, and then to Kyoto Imperial University in Japan.
During his time in Japan, Xia Wenyun painstakingly studied Japanese, as well as Japanese living customs, etc., he studied and lived in Japan for 7 years, and returned to China in March 1932, when Tohoku and japan occupied, Xia Wenyun's experience made the Japanese value him very much.
At that time, there were very few people in China who really knew Japanese, like the traitor translators in some TV dramas, most of them were half-hangers with comparisons, Xia Wenyun's advantage was that the Japanese language was good, and he also knew the living habits of the Japanese, and what the Japanese lacked at that time was a high-level translator.
Soon after Xia Wenyun returned to China, he was favored by the director of the second section of the Japanese General Staff and Zhiying II, and xia Wenyun was forced by the situation to serve as the interpreter of Hezhiying II, and the japanese military's policy of dialogue at that time was to incite the Chinese warlords to infighting in order to facilitate the profits from it.
He and Zhiying Er took a fancy to li Zongren, a warlord of the Gui clan who was in conflict with Chiang Kai-shek, and in order to win Li Zongren and Zhiying Er to Guangzhou many times to talk with Li Zongren, during which Xia Wenyun acted as an interpreter, during which Li Zongren realized that Xia Wenyun was a decent person and did not look like a person who was willing to be a traitor.
So he privately asked Xia Wenyun to go to the private house for talks, and learned from the conversation that Xia Wenyun was also forced to do things for the Japanese, and he couldn't help but cry when he talked about his hometown being bullied by his relatives occupied by the Japanese army, and finally Xia Wenyun agreed to be Li Zongren's secret intelligence officer.
Since 1934, Xia Wenyun has continuously transmitted information on Japan's activities in Southeast Asia and China, and after the Japanese army invaded China in an all-round way, Xia Wenyun used the protection of Zhiying II to collect a lot of intelligence within Japan, especially the intelligence of the Battle of Taierzhuang.
In February 1938, Li Zongren received a secret report from Xia Wenyun that the Japanese army had entered Yishui and other places in the south, and Li Zongren had arranged troops according to intelligence, so that the Japanese 5th Division and the 10th Division could not meet, thus achieving a great victory in Taierzhuang and killing more than 20,000 Japanese troops.
In April 1939, Xia Wenyun once again obtained information on the Japanese army's sweep of the Fifth Theater of Operations, Li Zongren got the information and skillfully responded, killing more than 5,000 Japanese troops, Xia Wenyun's two intelligences killed more than 25,000 Japanese troops, and he alone was better than the strength of one army.
So what happened to Xia Wenyun? His fate was unexpectedly good, after the victory of the Anti-Japanese War, Li Zongren protected him, and then Xia Wenyun went to Japan, settled in Japan with his Japanese wife Fujita Tomoei and his children, and ran a restaurant in Japan until his death in 1978 at the age of 73.