In 2007, the theme of the "China National Defense Cup" youth national defense education network knowledge competition was to popularize national defense knowledge, strengthen national defense concepts and stimulate patriotic enthusiasm. The year 2007 marks the 80th anniversary of the founding of the People's Liberation Army of China, the 70th anniversary of the Lugouqiao Incident on July 7th, and the 10 anniversary of the promulgation of the National Defense Law of People's Republic of China (PRC). In order to further popularize the knowledge of national defense among young students, strengthen the concept of national defense, stimulate patriotic enthusiasm, establish the thought of being prepared for danger in times of peace, and carry forward the spirit of patriotism and revolutionary heroism, the network knowledge contest of national defense education for young students, which was guided by the National Defense Education Office, sponsored by the National Defense Education Office of the Ministry of Education and undertaken by China National Defense Information Network, was held nationwide for the first time. It is hoped that this national defense education network knowledge contest will promote the further development of national defense education in schools, lay a solid foundation for cultivating builders of socialist cause and future defenders of the motherland, and strengthen and consolidate the construction of national defense reserve forces. The scope of the competition is open to all middle and high school students in the country. Competition website dsi.com/ competition schedule 1, registration stage: July 2007 1 to September 200710; Specific time: July 1 2007, 22: 00-September 10, 24:00 2. Answer stage: July 1 to September10, 2007; Specific time: July 1 2007, 22: 00-September 10, 24:00 3. Awarding stage: September 16 to September 17, 2007,