Introduction
How is the Military in Indonesia and how does it work to maintain Sucity and fight terrorism? In terms of Military and security forces, we have the Indonesian National Armed Forces (Tentara Nasional Indonesia, TNI): Army (TNI-Angkatan Darat, TNI-AD), Navy (TNI-Angkatan Laut, TNI-AL; includes Marine Corps (Korps Marinir or KorMar)), Air Force (TNI-Angkatan Udara, TNI-AU)

Indonesian National Police (aka The State Police of the Republic of Indonesia or POLRI)

Ministry of Transportation: Indonesia Sea and Coast Guard (Kesatuan Penjagaan Laut dan Pantai Republik Indonesia, KPLP); Coordinating Ministry for Political, Legal, and Security Affairs: Maritime Security Agency of the Republic of Indonesia (Badan Keamanan Laut Republik Indonesia, Bakamla) (2025).
In Indonesia, the military is responsible for external defense, combatting separatism, and responding to national emergencies and natural disasters; in certain conditions it may provide operational support to police, such as for counterterrorism operations, maintaining public order, and addressing communal conflicts

key operational priorities include an insurgency on Papua and the security of Indonesia's vast maritime domain; the West Papua Liberation Army, the military wing of the Free Papua Organization, has been fighting a low-level insurgency in Papua since Indonesia annexed the former Dutch colony in the 1960s; maritime issues include piracy, transnational crime, illegal fishing, and incursions by People's Republic of China (PRC) vessels; Indonesia is not a formal claimant in the South China Sea, although some of its waters lie within the PRC's “nine-dash line” maritime claims, resulting in some stand offs in recent years; over the past decade, the Indonesian military has bolstered its presence on and around the strategically located Natuna Islands (2025)
Security and military information of Indonesia
Military and security service personnel strengths approximately 400,000 active Armed Forces, including about 300,000 Army (2025)
Military equipment inventories and acquisitions the military's inventory is a wide mix of Chinese, Russian, and Western (including US) equipment; in recent years, major suppliers have included China, France, Germany, the Netherlands, South Korea, and the US; the TNI has been engaged in a modernization program for more than a decade; Indonesia has a growing defense industry fueled by technology transfers and cooperation agreements with several countries; in 2019, the Indonesian Government said that growing its domestic defense industry would be a national priority over the following decade (2024)
Military service age and obligation 18-45 years of age for voluntary military service for men and women, with selective conscription authorized (men, age 18), but not utilized; 24-month service obligation, with reserve obligation to age 45 (officers) (2024). note: as of 2023, women comprised about 7% of the Indonesian military
Military deployments 225 (plus about 140 police) Central African Republic (MINUSCA); 1,025 Democratic Republic of the Congo (MONUSCO); 1,225 Lebanon (UNIFIL) (2024).
Military expenditures
Military Expenditures 2024 0.8% of GDP (2024 est.)
Military Expenditures 2023 0.8% of GDP (2023 est.)
Military Expenditures 2022 0.8% of GDP (2022 est.)
Military Expenditures 2021 0.8% of GDP (2021 est.)
Military Expenditures 2020 0.8% of GDP (2020 est.)
Terrorism
In Indonesia, the different Terrorist group(s) inlcude: Islamic State of Iraq and ash-Sham (aka Jemaah Anshorut Daulah); Jemaah Islamiyah
All Important Facts about Indonesia

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Indonesia is found in South-Eastern Asia