Why did eight hundred heroes wear the German flag when entering the concession?

Because Japan and Germany were allies at that time, wearing the German flag could not be attacked by the Japanese.

Careful viewers may find that there is a scene in the film in which people hold a German Nazi flag and go to the garrison in the four-row warehouse. In this clip, Japanese officers specifically told Japanese snipers not to hurt Germans.

For this clip, everyone will naturally think of the alliance between Germany and Japan in World War II. Since the two countries are allies, it is not surprising that the Japanese army gave extra protection to the Germans, which is in stark contrast to the subsequent shooting of British, French and American citizens by Japanese warplanes in the concession.

Introduction to the film:

"800" was produced by Huayi Brothers Film Co., Ltd. and Beijing Seven Impression Culture Media Co., Ltd., and was jointly produced by Tencent Film Culture Communication Co., Ltd., Beijing Light Film Co., Ltd. and Alibaba Film (Beijing) Co., Ltd.

Directed by director Guan Hu, starring Huang Zhizhong, Ou Dahao, Wang Qianyuan, Zhang Yi, Du Chun, Zhang Youhao, Chen Wei, Li Chen, Byrne, Yu Ailei, Yu Haoming and Ryan. The film was released in China on August 4, 2020.

The film tells the story of 1937. During the Battle of Songhu, a reinforced battalion of the 524th Regiment of the 88th Division of the Third Theater of the Chinese National Revolutionary Army, known as the "eight hundred heroes", stuck to four rows of warehouses along the Suzhou Creek to stop the Japanese.