pay national debts interest支付国债利息
national economic interest国家经济利益
national security interest国家安全利益
national culture interest国家文化利益
national self interest国家私利;民族私利
national strategic interest国家战略利益
area of national security interest国家安全利益区
National Interest First国家利益至上
overall national interest民族大义
The direct cause behind this is related to a huge national interest.
这背后的直接原因便是涉及到巨大的国家利益。
参考来源 - 商业方法的专利保护研究（研究生论文）The tax legal principle is manifestation of modern constitution principles in tax law. It is pivotal to assure human rights, vindicate national interest and the social benefit.
税收法定原则是民主原则和法治原则等现代宪法原则在税法上的体现,对于保障人权、维护国家利益和社会公益举足轻重。
参考来源 - 行为税收引论Under the situation, we can understand the dilemma of KMT in the Northeast, that is to say, not to lost state and the national interest both.
明乎此,我们当可体认国民党在战后东北所处之两难处境,即如何既不失国家与民族利益,又维持其党派利益。
参考来源 - 战后国民党东北决策研究