Geopolitical tensions are rising in some parts of the globe due to ongoing conflicts. These tensions raise concerns about the potential for a security, economic and geopolitical tensions. Furthermore, China's growing global influence has prompted the United States to assert its status as the dominant world power. This study evaluates the role of the Immigration border strategy in protecting Indonesia in the economical war between China and US. A qualitative document analysis method was conducted using data from national agencies involved in defense strategy and border security. Preliminary findings suggest that an open war scenario is still unfamiliar to the Indonesian immigration agency. It lacks a mitigation strategy for uncontrollable irregular influx despite some expected impacts, such as refugee crises, foreign military personnel movements, and disrupted regional border cooperation. This study recommends revising Indonesian Immigration Law and regulations to incorporate regional war scenarios, involving other state agencies in the process. It would strengthen the role of Immigration in maintaining national stability. Immigration border control management should prioritize pre-emptive measures, emphasizing risk management. © CC BY 4.0.