Indonesia Security Report — October 27, 2026

Security analysis based on open-source intelligence and web research. Period: October 20 — October 27, 2026.

Executive Summary

Indonesia has experienced a dynamic security landscape between October 20 and October 27, 2026, marked by significant military exercises, ongoing defense modernization, and crucial diplomatic engagements. Domestically, the period saw large-scale security deployments in Jakarta to manage protests, alongside continued efforts to combat evolving cyber threats and decentralized terrorism networks. Geopolitically, Indonesia actively balanced relations with major powers, concluding joint military drills with Australia while preparing for counter-terrorism exercises with China, underscoring its non-aligned foreign policy. The nation is also pushing forward with ambitious defense industry growth and critical trade agreements, aiming to bolster its strategic autonomy and economic resilience amidst global uncertainties.

Key Security Developments

• Internal Security and Protests
  On October 20, 2026, over 9,000 Indonesian police officers were deployed in Jakarta to manage protests marking President Prabowo Subianto's two years in office. Students from the University of Indonesia and other institutions demonstrated against issues such as recent forest fires and the fragility of the national economy, reflecting domestic discontent. This significant security presence highlights the government's proactive approach to maintaining public order during periods of political expression.

• Military Activities and Exercises with Australia
  Exercise Keris Woomera, the Australian Defence Force's largest overseas training activity for 2026, concluded on October 20, 2026. Held over nine days in East Java and the Bali Sea, it involved approximately 1,000 Australian Defence Force (ADF) personnel and over 1,200 members of the Indonesian National Armed Forces (TNI). The exercise strengthened interoperability across maritime, land, air, and cyber domains, notably featuring the first overseas deployment and firing of the High Mobility Artillery Rocket System (HIMARS) by the ADF and the first cyber integration training with Indonesia.

• Joint Counter-Terrorism Exercise with China
  From late October to early November, the Chinese and Indonesian militaries are scheduled to hold the "Sharp Knife 2026" army counter-terrorism joint training exercise in South China's Guangdong Province. This marks the third iteration of the series and the first in 14 years, focusing on mountain counter-terrorism rescue operations, including helicopter rappelling, close-quarters assault, and manned-unmanned coordination. The exercise signifies a renewed focus on non-traditional security cooperation between the two nations.

• Defense Acquisitions and Modernization Drive
  Indonesia is rapidly modernizing its military under President Prabowo Subianto, with significant multi-billion-dollar acquisitions. Recent procurements include the commissioning of the first six Dassault Rafale F4 fighter jets (out of 42 ordered) in May 2026, the contract for 48 fifth-generation TAI KAAN stealth fighters from Turkey (deliveries starting 2032), and the deployment of Turkish-built Roketsan KHAN/Bora short-range ballistic missile systems. The Indonesian Navy also commissioned the former Italian aircraft carrier ITS Giuseppe Garibaldi as the KRI Sriwijaya in September 2026.

• Strategic Arms Deals
  Indonesia finalized a $630 million strategic defense pact with India to acquire BrahMos supersonic cruise missiles and Astra beyond-visual-range air-to-air missiles for Sukhoi-30 integration. Additionally, Indonesia has taken delivery of two Italian Offshore Patrol Vessels (PPA) and contracted for Turkish Istanbul-class frigates, alongside domestic Red White-class frigates. These acquisitions underscore Indonesia's diversified approach to defense procurement and its commitment to enhancing naval and air capabilities.

• Cybersecurity Threat Landscape
  The National Cyber and Crypto Agency (BSSN) reported 5.5 billion cyberattacks in Indonesia in 2025, a 714% increase over the annual average for 2020–2024. From January 1 to April 15, 2026, an additional 1.52 billion cyberattacks were recorded. Bank Indonesia projects losses from cyberattacks to reach approximately US$6.2 billion (Rp110.93 trillion) in 2026. This escalating threat highlights the urgent need for robust cybersecurity measures and regulatory frameworks, with the government actively drafting a Cybersecurity and Resilience Bill.

• Evolving Counter-Terrorism Challenges
  In early October 2026 (Oct 2-5), Indonesia's Detachment 88 counter-terrorism unit arrested 11-12 suspects across six provinces, linked to militant networks associated with the "Daulah Islamiyah" ideology. Counter-terrorism efforts are adapting to a significant shift from structured networks to decentralized online subcultures, with Densus 88 identifying 70 children aged 11 to 18 across 19 provinces involved in preparatory acts of violence. This necessitates an evolution in strategy from dismantling organizations to intercepting individual pathways to violence.

• Diplomatic Push for Defense Industry Growth
  Newly appointed Foreign Minister Arrmanatha Nasir stated on October 12, 2026, that Indonesia would leverage diplomatic efforts to grow its defense industry, emphasizing domestic production and technology transfers in negotiations. This aligns with Indonesia's "not joining any military blocs" stance, aiming to be a "peace-loving nation" while firmly defending national interests.

• Indonesia-EU Comprehensive Economic Partnership Agreement (CEPA)
  Indonesia is targeting the signing of the Indonesia-European Union Comprehensive Economic Partnership Agreement (IEU-CEPA) by the end of October 2026, with implementation aimed for early 2027. This agreement is crucial as the EU's Generalised Scheme of Preferences for Indonesian goods is set to expire by the end of 2026, and the CEPA would provide immediate zero-tariff access for 90.4% of Indonesian tariff lines.

• Deepening Economic and Security Ties with China
  Economic cooperation between Indonesia and China has expanded dramatically, with bilateral trade reaching $154 billion in 2026, up from $8 billion two decades ago. Beyond trade, the two nations are seeking broader cooperation in defense, technology, energy, and regional security, including joint development in the South China Sea. This deepening relationship is part of Indonesia's strategic hedging in the Indo-Pacific.

• President Prabowo's Stance on MSCI Downgrade
  On October 21, 2026, President Prabowo Subianto publicly criticized global index provider MSCI for proposing to downgrade Indonesia's market status from "emerging market" to "standalone market," accusing them of trying to "frighten" Indonesia. This strong reaction underscores Indonesia's sensitivity to international financial assessments and its determination to assert economic sovereignty.

• Forest Fires and Environmental Terrorism
  Widespread forest and land fires across Indonesia, particularly in Sumatra and Kalimantan, have continued to cause regional haze. President Prabowo Subianto labeled deliberate setting of fires as "environmental terrorism" and a "crime against humanity," ordering investigations and vowing to revoke permits of foreign firms tied to the fires. This highlights a significant internal security and environmental challenge.

Geopolitical Impact and Regional Dynamics

Indonesia's security developments during this period reflect its consistent pursuit of an independent and active foreign policy, navigating complex regional and global dynamics. The conclusion of Exercise Keris Woomera with Australia and the upcoming "Sharp Knife 2026" joint counter-terrorism exercise with China demonstrate Indonesia's strategic hedging, engaging with both Western and Eastern powers without formally aligning with any military bloc. This approach aims to enhance its military capabilities and address diverse security threats, from traditional defense to non-traditional challenges like terrorism. The emphasis on technology transfers and domestic production in defense acquisitions further strengthens Indonesia's strategic autonomy, reducing reliance on single foreign suppliers.

The deepening economic and security cooperation with China, evidenced by the significant jump in bilateral trade to $154 billion, positions China as a major economic and strategic partner. While this offers substantial economic benefits, it also necessitates careful management to avoid exacerbating regional anxieties, particularly concerning the South China Sea. Indonesia's efforts to balance this with its Major Defense Cooperation Partnership with the US (established in April 2026) are crucial for maintaining regional stability and ensuring no single superpower holds a monopoly over its military modernization.

Indonesia's active role in regional forums, such as hosting the D-8 Summit in 2027 (postponed due to Middle East tensions), and its commitment to principled, non-aligned diplomacy, reinforce its position as a key voice in the Global South. President Prabowo's strong condemnation of MSCI's proposed market downgrade and his labeling of forest fires as "environmental terrorism" underscore a growing assertiveness in defending national interests and sovereignty against external pressures and internal threats. The ongoing negotiations for the IEU-CEPA also highlight Indonesia's efforts to diversify its economic partnerships and secure favorable trade terms in a competitive global environment.

Military and Defense Analysis

Indonesia's military and defense posture is undergoing a significant modernization program under President Prabowo Subianto, driven by a recognition of global geopolitical uncertainties and the need for a strong deterrent. The defense budget for 2027 is projected at Rp 189 trillion ($10.5 billion), a slight increase from Rp 187 trillion ($10.4 billion), reflecting sustained investment in capabilities. This spending is directed towards procuring advanced major weapons systems, strengthening the organizational structure of the TNI, and establishing Territorial Development Battalions.

Key capability developments include the commissioning of Dassault Rafale F4 fighter jets and the contract for TAI KAAN stealth fighters, significantly enhancing Indonesia's air power with 4.5 and fifth-generation aircraft. The acquisition of KHAN ballistic missiles provides the army with a 300-kilometer strike range, while BrahMos supersonic cruise missiles and Astra air-to-air missiles boost naval and air force strike capabilities. The commissioning of the KRI Sriwijaya aircraft carrier (formerly ITS Giuseppe Garibaldi) in September 2026 marks a notable expansion of naval projection capabilities. Furthermore, the delivery of Italian Offshore Patrol Vessels and Turkish Istanbul-class frigates, alongside domestic frigates, strengthens maritime security and naval presence. A crucial aspect of this modernization is the emphasis on domestic defense industry development and technology transfers, aiming to build a self-reliant defense system. This includes plans for a Beijing-backed ammunition factory and technology transfers from Dassault Aviation to PTDI.

Outlook and Forecast

Short-term trends (1-3 months): In the immediate future, Indonesia will likely continue its active diplomatic engagements, particularly with the targeted signing of the IEU-CEPA by the end of October 2026. The "Sharp Knife 2026" joint counter-terrorism exercise with China will proceed, signaling ongoing security cooperation with Beijing. Domestically, the government will remain vigilant regarding protests in Jakarta, especially around significant political anniversaries, and will likely intensify efforts to combat forest fires, potentially leading to further actions against responsible corporations. The focus on cybersecurity will also increase, with continued efforts to draft and implement the Cybersecurity and Resilience Bill.

Critical flashpoints and risk areas: Critical flashpoints include the South China Sea, where Indonesia's deepening security ties with China and its own national interests could lead to increased scrutiny and potential friction with other claimants or major powers. The evolving nature of terrorism, particularly the rise of decentralized online subcultures and the involvement of minors, poses a persistent internal security risk that requires adaptive counter-terrorism strategies. Cybersecurity vulnerabilities remain a significant concern, given the high volume of attacks and projected financial losses, potentially impacting critical infrastructure and financial systems. Furthermore, domestic political stability could be tested by ongoing public discontent and protests, especially if economic conditions or environmental issues like forest fires worsen.

Indicators to monitor: Key indicators to monitor include the progress and ratification of the IEU-CEPA, which will impact Indonesia's trade relations and economic stability. The nature and frequency of joint military exercises with both Western and Eastern partners will be crucial indicators of Indonesia's balancing act in its foreign policy. Developments in the South China Sea, including any new claims or incidents, should be closely watched. Domestically, the effectiveness of counter-terrorism operations against online radicalization and the implementation of the new cybersecurity legislation will be important. The government's response to forest fires and public protests will also indicate internal stability.

Strategic recommendations: Indonesia should continue to diversify its defense partnerships and actively pursue technology transfers to bolster its indigenous defense industry, ensuring strategic autonomy. It is vital to strengthen cybersecurity infrastructure and implement comprehensive national strategies to counter the escalating cyber threat, including public-private partnerships. Counter-terrorism efforts must adapt to the decentralized nature of modern threats, focusing on early detection, de-radicalization programs, and international intelligence sharing. Diplomatically, Indonesia should maintain its non-aligned stance, leveraging its strategic position to foster regional stability while advocating for its national interests in multilateral forums. Economically, accelerating the IEU-CEPA and exploring new trade agreements will be crucial for sustained growth and resilience.

Sources

• channelnewsasia.com
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