关键战场｜八字桥、四行仓库、吴淞炮台……同仇敌忾 血沃淞沪

Core Points - The article discusses the significant historical event of the Battle of Shanghai, also known as the "August 13" Incident, which marked the beginning of large-scale resistance against Japanese invasion in 1937 [1][3][9] - The battle involved over 700,000 Chinese troops and 250,000 Japanese soldiers, lasting for three months and thwarting Japan's strategy to quickly conquer China [1][9][21] Group 1 - The Japanese military launched a surprise attack on August 13, 1937, targeting key locations in Shanghai, including the Bazi Bridge, which was a strategic point for Chinese defenses [3][5][7] - The Chinese military, including various regional armies, quickly mobilized to defend Shanghai, with the National Government declaring a self-defense war [9][21] - Despite being outnumbered and outgunned, Chinese air forces engaged in fierce combat, achieving significant victories against Japanese aircraft [11][13][21] Group 2 - The battle saw notable acts of heroism from young Chinese pilots, with many sacrificing their lives to defend against the Japanese forces [15][17][19][21] - The Chinese military faced heavy casualties, with reports indicating that they lost nearly a division daily during the most intense fighting [24][21] - The National Government decided on a strategic retreat by late October 1937, with the Four Lines Warehouse becoming a symbol of resistance [26][29][33]