Recently, the Central Committee of the Communist Party of China, the State Council and the Central Military Commission issued the Opinions on Strengthening and Improving National Defense Education for All in the New Era, which is a programmatic document guiding national defense education for all at present and in the future. Learning, publicizing and implementing the Opinions will further promote the reform, development and popularization of national defense education for all in the new era, and enhance the deep feelings of the people to love the Party, love socialism, be prepared for danger in times of peace, respect the military and respect the military, and the responsibility of building a strong military. Building and consolidating national defense and a strong military is the strategic support for upholding and developing socialism with Chinese characteristics and realizing the great rejuvenation of the Chinese nation in the new era. During his tenure in Fujian Province that year, President Xi served as the first political commissar of a reserve antiaircraft division in Fujian. For some time, he heard some of the pre elected officers say: "It is a peaceful era, and the main energy should be put on improving economic development and improving people's living standards." President Xi believed that the main task of our country at this stage is to focus on economic development, but the country is insecure without defense and the people are restless without troops. If we only focus on economic development and neglect national defense, it will inevitably affect economic development and even lose the fruits of reform and opening up. The important task of military preparedness should be to strengthen one's heart. National defense education is to "strengthen the heart" of a nation. If a country or nation lacks national consciousness, family and national feelings, and national defense concept, even if its territory is large, its population is large, and its products are rich, it is just a loose sand, and it is difficult to form a force of unity. According to a British economic historian in the Millennium History of the World Economy, the GDP of the Qing Empire in 1820 accounted for 32.9% of the total world economy, far more than that of other countries at that time. However, with the invasion of foreign enemies such as the Opium War and the Sino Japanese War, the great country soon fell into the abyss of semi colonialism and semi feudalism. Liang Qichao once pointed out that "the great trouble for our people is that we don't know what the country is." "In safety, we should not forget danger, in preservation, we should not forget destruction, and in governance, we should not forget disorder." In times of peace, everyone should still have a wolf in his heart. In particular, in the face of the requirements of the times of building a strong country and a strong military, the serious situation of national security and the existing war risks, we should be more soberly aware that peace is not equal to security, because the fragile flower of peace is very easy to be destroyed by hurricanes. If a country cannot keep up with its security maintenance methods, the richer it is, the more likely it will be killed by others. To this end, we must always bear in mind the sense of hardship, always be prepared for danger in times of peace, and constantly improve our ability to win wars to ensure that we are ready for war at all times. The prosperity of the country and the rejuvenation of the nation are inseparable from the enhancement of the national defense awareness of the whole people, the strength of unity and the support of a strong army. Our army is the people's army, and our national defense is the national defense of the whole people. A strong country must have a strong army behind it. Building a strong army cannot be separated from the people's concern and support for national defense. The great changes in the world that have not occurred in a century are accelerating the evolution, the instability and uncertainty are rising significantly, and the conditions of the times, mission and tasks, and subject objects of national defense education are undergoing profound changes. Against this background, it is more necessary to cultivate national defense awareness in the hearts of the people, so as to care about national defense, love national defense, and build national defense