In the air struggle of the year 1937, the air force attacked the Japanese air force, and the Japanese air force attacked the Japanese air force, the National Government Military Committee urgently ordered the Japanese air force's 4th destroyer at Hangzhou City Bridge to attack Hangzhou City Bridge, also known as the "Hangzhou Bridge Air Force". On August 13, 1937, the Japanese air force launched the first operation of the Japanese air struggle, the Japanese air force attacked Shanghai with heavy troops. The Japanese air force urgently ordered the Japanese air force's 4th destroyer to attack Hangzhou City Bridge, also known as the "Hangzhou Bridge Air Force". On August 14, when the Japanese air force attacked the Hangzhou City Bridge airport, the Japanese air force attacked the Japanese aircraft, the