The formation of the state of Indonesia into an independent state is a joint commitment on all elements of pluralism or diversity of citizens in various aspects such as, tribe, race, culture and religion. The motto of Bhinneka Tunggal Ika and Pancasila is a sacred philosophy as well as a non-negotiable guideline for the nation and state of Indonesia. With the existing diversity, it is expected that all the people of Indonesia can appreciate, obey, and maintain it, so that wholeness and harmony will be realized. The efforts to defend the state is the attitude and behavior of citizens who are imbued with his love of the Unitary State of the Republic of Indonesia based Pancasila 1945 Constitution in ensuring the survival of the nation and state. Viewed from the historical aspect of the struggle of the nation, Indonesian society has proven itself that always participate and be united with the defense and security apparatus in defending and maintaining Indonesia's independence. The guidance of nationalism has been initiated since the national revival of 1908 which was then affirmed in 1928 with the birth of the Youth Pledge, and finally proclaimed the independence of the Republic of Indonesia on 17 August 1945.The concept of the state defense is a moral conception that is implemented in the attitude, behavior and actions of citizens based on the love of the homeland, the awareness of the nation and the state, the belief in Pancasila as the state ideology, and the willingness to sacrifice for the nation and state of Indonesia. Thus, the guidance of state defense awareness through civic education is intended to instill national commitment, including developing values and democratic and responsible behavior as Indonesian citizens.Based on the data of the research, it was concluded that there is influence of the understanding of Pancasila Third precision toward the attitude of the state defending at SD Negeri 173266 Pantis Pahae Julu Sub-District North Tapanuli District in Academic Year 2018/2019.