Core Viewpoint - The article highlights the emotional and historical significance of a "death" flag created by a father during the Second Sino-Japanese War, symbolizing patriotism and sacrifice for the nation [1][9]. Group 1: Historical Context - The "Lugou Bridge Incident" on July 7, 1937, marked the beginning of Japan's full-scale invasion of China, leading to the retreat of the Nationalist government to Chongqing [1]. - In response to the dire situation, a local teacher, Wang Jiantang, organized a group of over 170 young men to fight against the Japanese invaders, forming the "Northwest Youth Volunteer Army" [1][4]. Group 2: Personal Stories - Wang Jiantang's father, Wang Zhecheng, expressed his deep understanding of the national crisis and the necessity of sacrifice, despite the pain of sending his son to war [2][4]. - The emotional farewell at a rally attended by around 3,000 people was marked by heavy rain, symbolizing the somber mood as Wang Jiantang received the "death" flag from his father [6][8]. Group 3: The "Death" Flag - The flag, made of white cloth with a large "death" character, carried a message urging loyalty to the nation over personal safety, emphasizing the importance of sacrifice during national crises [4][9]. - Wang Jiantang carried the flag throughout his military service, which included participation in significant battles such as the Wuhan and Changsha campaigns, earning multiple commendations for his bravery [6][8]. Group 4: Legacy and Education - The story of the "death" flag and its significance has been preserved and is now shared by Wang Jiantang's descendants, who view it as a symbol of national pride and a tool for educating future generations about patriotism [10]. - The flag has been replicated and displayed in the Jianchuan Museum, serving as a poignant reminder of the sacrifices made during the war and the enduring spirit of the Chinese people [9][10].