国家利益体现了国家意志的价值取向与需求 ,关系到国家存亡、利益得失 ,加强国防建设应坚持以国家利益为最高原则 ;必须在国民经济不断发展的基础上 ,确定并保持合理的国防投入 ,使军费所占的比重 ,既不影响国家经济建设大局 ,又能满足国家安全利益的需要 ,坚持国防建设与经济建设协调发展的原则 ;“主要依靠自力更生 ,同时不放松外援之争取”,是毛泽东在发展国防经济力量过程中正确处理自力更生与依靠外援的关系的科学概括 National interests embody the value orientation and needs of the will of the state, relate to the survival of the country and the gains and losses of the interests, and strengthen the national defense as the supreme principle; we must determine and maintain a reasonable national defense investment based on the continuous development of the national economy, So that the proportion of military expenditures will not affect the overall economic construction of the country but will also satisfy the needs of national security interests and adhere to the principle of coordinated development of national defense and economic construction. “The principle of” relying mainly on self-reliance and not relaxing foreign aid " Correctly handle the scientific summary of the relationship between self-reliance and foreign aid in the process of developing the national defense economy