Indonesia Security Report — October 20, 2026

Security analysis based on open-source intelligence and web research. Period: October 13 — October 20, 2026.

Executive Summary

Indonesia experienced a dynamic security landscape between October 13 and October 20, 2026, marked by significant military exercises, high-level diplomatic engagements, and pressing internal security challenges. The nation co-hosted the large-scale Keris Woomera 26 joint military exercise with Australia in East Java, underscoring its commitment to regional defense cooperation. Concurrently, Indonesia engaged in crucial diplomatic discussions with UN Secretary-General Antonio Guterres, advocating for UN Security Council reform and multilateralism. Domestically, the country grappled with extensive forest and land fires in Kalimantan, which caused a regional haze crisis, and faced public protests in Jakarta linked to economic concerns and government performance. Cybersecurity also remained a priority, with Indonesia championing regional resilience at an ASEAN ministerial conference.

Key Security Developments

• Military Activities and Exercises: Joint Exercise Keris Woomera 26 Concludes
  The Indonesian National Armed Forces (TNI) and the Australian Defence Force (ADF) successfully concluded their joint military exercise, Keris Woomera 26, on October 20, 2026, in Banyuwangi, East Java. The exercise, which ran from October 12, involved approximately 1,235 TNI personnel and 1,000 ADF personnel, making it Australia's largest overseas military training activity for the year. Activities included an amphibious landing, live-fire drills, and maritime operations integration, significantly strengthening bilateral defense and security cooperation between the two nations.

• Diplomatic Relations: UN Secretary-General's Visit and Call for Reforms
  UN Secretary-General Antonio Guterres visited Indonesia from October 17 to October 20, 2026, meeting with President Prabowo Subianto and Foreign Minister Arrmanatha Nasir. During his visit, Guterres called for reform of the UN Security Council, noting that some permanent members were undermining international peace and security. Indonesian Foreign Minister Arrmanatha Nasir echoed this sentiment, emphasizing the urgent necessity of UN reforms to ensure inclusivity for the Global South and to strengthen multilateralism.

• Diplomatic Relations: Principled Non-Aligned Foreign Policy
  On October 13, 2026, Indonesia's new Foreign Minister, Arrmanatha Nasir, affirmed the nation's commitment to a principled, non-aligned diplomacy amidst rapid geopolitical shifts. He stated that Indonesia's foreign policy would remain consistent with its traditional independent and active doctrine, aiming to be a source of certainty in an uncertain world and not binding itself to any military alliance or geopolitical bloc.

• Diplomatic Relations: Deepening Ties with China and Egypt
  A "Global South Dialogue: China-Indonesia Roundtable Forum" was held in Jakarta on October 20, 2026, focusing on building a China-Indonesia community with a shared future, strengthening China-ASEAN regional cooperation, and promoting the common development of the Global South. Earlier, on October 12, 2026, Indonesia and Egypt agreed to strengthen defense cooperation, specifically in defense industry, human resource capacity through education and joint training, and the exchange of expertise.

• Security Incidents and Threats: Worsening Forest and Land Fires
  Indonesia continued to battle extensive forest and land fires, with a monitor reporting that over 1.9 million hectares had burned in the first nine months of 2026, exceeding 2019 levels. The resulting haze significantly impacted parts of Indonesia, Malaysia, and Singapore. On October 20, 2026, Coordinating Minister for Political and Security Affairs Dudung Abdurachman announced Indonesia's acceptance of assistance from Malaysia (three aircraft and 52 personnel) and Singapore to combat the blazes, after initially holding off on declaring a national disaster.

• Military Activities: TNI AU Deploys for Cloud Seeding
  In response to the ongoing forest and land fires, the Indonesian Air Force (TNI AU) deployed an NC-212 aircraft on October 20, 2026, to conduct cloud-seeding operations over South and Central Kalimantan. This effort aimed to induce rainfall and mitigate the widespread wildfires that have caused significant environmental and health concerns.

• Internal Security: Protests in Jakarta
  On October 20, 2026, more than 9,000 Indonesian police officers were deployed in Jakarta to manage protests marking President Prabowo Subianto's two years in office. Students from at least two universities demonstrated against recent forest fires, a rout on the stock market, and the weakening rupiah, signaling concerns over the "national economy's fragility." Environmental group Greenpeace also participated, protesting the climate crisis and the rising cost of living.

• Cybersecurity: ASEAN Regional Resilience
  Indonesia actively advocated for strengthening cybersecurity resilience in Southeast Asia during the 11th ASEAN Ministerial Conference on Cybersecurity (AMCC) in Singapore on October 14, 2026. The Head of Indonesia's National Cyber and Crypto Agency (BSSN), Nugroho Sulistyo Budi, emphasized the need for collective regional defense against complex cyber threats, focusing on trust, transparency, and cooperation. The conference also formally welcomed the ASEAN Cybersecurity Cooperation Strategy 2026–2030.

• Defense Acquisitions and Industry: Modernization Efforts
  Indonesia is continuing its efforts to modernize the TNI through the acquisition of advanced defense equipment, such as Rafale fighter jets, with considerations for global conflicts and the increasing use of drones. This aligns with President Prabowo Subianto's earlier announced plan to procure up to 200 helicopters in 2026 to bolster both defense capabilities and disaster response. The Indonesian Navy has also received new frigates, KRI Brawijaya-320 and Prabu Siliwangi-321, from Italy, and the domestically produced KRI Belati-622 warship.

• Political Stability: Declining Presidential Approval and Economic Concerns
  President Prabowo Subianto's approval rating has fallen to 44.5% in October 2026, a significant drop from 81.2% in November of the previous year. This decline is linked to public dissatisfaction over economic issues, including a weakening rupiah and a stock market rout, as well as the government's handling of the forest fires. Rating agencies are reportedly concerned, with MSCI potentially downgrading Indonesian stocks to "frontier" status.

Geopolitical Impact and Regional Dynamics

Indonesia's security developments during this period underscore its strategic positioning as a key player in the Indo-Pacific, balancing its non-aligned foreign policy with active engagement in regional security and multilateral diplomacy. The Keris Woomera 26 exercise with Australia highlights Indonesia's commitment to strengthening defense ties with close partners, contributing to regional interoperability and stability in Southeast Asia. This bilateral cooperation, alongside Indonesia's participation in broader multinational exercises like Super Garuda Shield (though concluded earlier), signals a proactive approach to collective security and disaster response in a geographically challenging region.

The high-profile visit of UN Secretary-General Antonio Guterres to Jakarta and Indonesia's strong advocacy for UN Security Council reform reflect its ambition to play a more influential role on the global stage, particularly in championing the interests of the Global South. This diplomatic push for a more equitable and representative international system positions Indonesia as a voice for developing nations, potentially enhancing its soft power and leadership within international forums. The "Global South Dialogue" with China further reinforces Indonesia's efforts to foster cooperation among developing countries, while also navigating its complex relationship with major powers.

Indonesia's persistent calls for cooperation and dialogue in the South China Sea demonstrate its ongoing efforts to de-escalate tensions and promote peaceful resolution in the disputed waterway. While maintaining its non-claimant status, Indonesia's diplomatic initiatives are crucial for regional stability, especially given the strategic importance of the South China Sea as a major trade route. The country's careful balancing act between engaging with China on economic and strategic dialogues while also participating in exercises with Western partners like Australia and the US (as seen in earlier Super Garuda Shield) reflects its independent foreign policy doctrine.

Military and Defense Analysis

Indonesia's military and defense posture during this period reflects a clear focus on modernization, enhanced interoperability with key partners, and a dual-purpose capability for both defense and disaster response. The successful conclusion of Exercise Keris Woomera 26 with Australia demonstrates a significant step in improving the Indonesian National Armed Forces' (TNI) operational capabilities, particularly in amphibious operations and maritime integration. Such exercises are vital for refining joint command structures, sharing tactical knowledge, and building trust, which are critical for addressing shared regional security challenges and humanitarian assistance scenarios.

The ongoing defense acquisition program, which includes the procurement of advanced platforms like Rafale fighter jets and a planned purchase of up to 200 helicopters, underscores Indonesia's commitment to modernizing its primary weapons systems (alutsista). The emphasis on helicopters for both defense and disaster response highlights a pragmatic approach to capability development, acknowledging Indonesia's vulnerability to natural catastrophes. Furthermore, the domestic production of warships, such as the KRI Belati-622, indicates a growing capacity within Indonesia's defense industry, aiming to reduce reliance on foreign suppliers and foster self-sufficiency.

Defense spending trends are likely to remain robust under President Prabowo Subianto's administration, given his focus on military strength and modernization. The strategic rationale behind these acquisitions also considers evolving global conflicts, including the increased use of drones, which informs the types of capabilities Indonesia seeks to develop. While specific budget figures for this period are not available, the continued investment in advanced equipment and joint training initiatives suggests a sustained effort to enhance Indonesia's overall defense capabilities and maintain a credible deterrent in the region.

Outlook and Forecast

Short-term trends (1-3 months): In the immediate future, Indonesia will likely continue to focus on mitigating the forest and land fires in Kalimantan, with sustained efforts in cloud seeding and potentially increased international cooperation. The domestic political landscape will remain sensitive, with the government needing to address public discontent over economic issues and the handling of the haze crisis. President Prabowo's administration will be under pressure to demonstrate tangible improvements in these areas to stabilize his approval ratings. Diplomatic efforts will continue to center on multilateral engagement, particularly in the lead-up to potential UN Security Council reform discussions, and maintaining a balanced approach in relations with major powers like China and the US.

Critical flashpoints and risk areas: The primary internal risk remains the worsening haze crisis from the forest fires, which could escalate public health emergencies and strain regional diplomatic relations if not effectively managed. The economic discontent and associated protests in Jakarta also pose a risk to internal stability, especially if economic indicators like the rupiah's value and stock market performance do not improve. Externally, while Indonesia promotes dialogue in the South China Sea, any escalation of tensions among claimant states or major powers in the disputed waters could indirectly impact Indonesia's maritime security interests and regional stability.

Indicators to monitor: Key indicators to monitor include the progress in containing the forest fires and the effectiveness of cloud-seeding operations, as well as the level of regional cooperation in haze mitigation. Domestically, public approval ratings for President Prabowo, the stability of the rupiah, and the performance of the stock market will be crucial gauges of political and economic stability. In the diplomatic sphere, observe Indonesia's continued engagement in UN reform discussions and any new initiatives regarding South China Sea diplomacy. Further defense acquisitions or joint military exercises will also indicate the trajectory of Indonesia's defense modernization and strategic partnerships.

Strategic recommendations: To address the immediate challenges, the Indonesian government should prioritize a more aggressive and transparent strategy for combating the forest fires, including leveraging all available domestic and international resources. Clear communication with the public regarding economic policies and their expected impact is essential to alleviate discontent. Diplomatically, Indonesia should continue to champion multilateralism and UN reform, using its growing influence to advocate for a more inclusive global order. In defense, maintaining a balanced approach to partnerships, while continuing to invest in indigenous defense industry capabilities, will be key to enhancing national security and regional stability.

Sources

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