South Korea and Indonesia are strengthening strategic maritime cooperation to secure energy transit routes through Indonesian chokepoints (Malacca, Sunda, Lombok), combining ROK’s advanced technology with Indonesia’s geographic advantage amid growing regional vulnerabilities.

Challenges include maritime threats (piracy, IUU fishing), capability gaps (Indonesia’s limited naval assets vs. ROK’s distance), US-China rivalry, and domestic constraints (bureaucracy, technology transfer issues).

The partnership focuses on practical areas such as defence technology transfers, joint energy projects (LNG, offshore facilities), smart ports, and blue economy initiatives, framed within ASEAN-ROK dialogue to enhance regional stability and energy security.

The Indo-Pacific will be increasingly stable by 2026, as South Korea (ROK) and Indonesia strengthen their strategic maritime cooperation to protect energy transit routes. ROK’s dependence on secure energy supplies and Indonesia’s control of important maritime chokepoints create a powerful combination, as ROK’s advanced technology is integrated with Indonesia’s geography. This is a multifaceted partnership that faces a number of challenges, including a range of maritime vulnerabilities, the intensifying great-power rivalry, and a number of domestic capacity constraints. However, an effective strategy of defence, energy security, and diplomacy can overcome these challenges.

In order to maintain the economic well-being of South Korea, a secure energy supply by means of safe maritime trade is critical. By 2026, over 99% of the ROK’s crude oil and LNG imports will be delivered by sea, with 70% of them passing through the Southeast Asian waters and straits, such as Malacca, Sunda and Lombok. The straits through Indonesia, an archipelago, are critical to the economic well-being of South Korea. Energy flow through the Malacca and Singapore Strait alone........

© Eurasia Review