On December 7, 1937, the Nanjing Defense Battle was officially launched. On December 7, 1937, the Nanjing Defense Battle was officially launched. On the same day, the Japanese "China Army" ordered an offensive on the first line defense positions outside Nanjing, and the two armies of the Middle and South China conducted a fierce position struggle for war. The Japanese Army deployed the Shanghai Dispatch Army and the 10th Army with another brigade of seven divisions, and surrounded the Nanjing Regiment. The Chinese Nanjing Guard Army (Commander-in-ChiefÌÆÉúÖÇ) had eight armies, a teaching general and a constitutional force of more than 15 divisions and more than 100,000 soldiers.