Optimization of the Total Defense System in Facing National Securities Challenges to Defend State Sovereignty

The purpose of this study is to describe the increasing escalation of military, non-military, and hybrid threats to the Republic of Indonesia’s defense system. These risks pose a challenge to national security for the Ministry of Military (MoD) and the TNI, made worse by other countries’ increasingly advanced military forces. The goal of this research is to improve the Total Defense System (Sishanta) and the availability of the national defense budget, particularly for modernizing the TNI’s main weapons system equipment. The research method used is qualitative research, with a descriptive research type. The results of the research show that to offset the military strength of other countries, the MoD and the TNI, among others, are optimizing the Sishanta by modernizing military forces, developing science and technology, developing the Strategic Environment, predicting future threats, and increasing international cooperation, as well as fostering awareness of defending the country. To meet the challenge of national securities, it is required to have the participation of reserve and supporting components, as well as optimal budget assistance, in order to protect the Republic of Indonesia’s sovereignty