SOUTHEAST ASIA — Indonesian Defense Minister Sjafrie Sjamsoeddin and U.S. Secretary of War Pete Hegseth signed the Major Defense Cooperation Partnership at the Pentagon on April 13, 2026. The agreement grants Indonesia access to subsurface technology, autonomous systems, and advanced asymmetric capabilities.
The partnership rests on pillars of military modernization, professional training, and joint operational exercises. It includes commitments to high-end technology transfer and joint defense industry development, distinguishing it from the 2023 Comprehensive Strategic Partnership. The agreement does not include a mutual defense clause, preserving Indonesia's strategic autonomy.
As part of the partnership, the United States granted Indonesia waivers from U.S. sanctions on Russian energy purchases to maintain global energy supply stability. Indonesia secured Russian crude oil at an estimated price of $59 per barrel to shield its economy from energy inflation. Such purchases of Russian energy carry the risk of U.S. sanctions under the Countering America's Adversaries Through Sanctions Act.
Indonesia has a "multi-alignment" doctrine designed to protect its national interests during a global energy crisis triggered by the closure of the Strait of Hormuz. The country maintains strategic ties with Russia and China while deepening security cooperation with the U.S. Indonesia aims to become a hub of stability in the Indo-Pacific by 2045 by securing energy from Russia and technology from Western partners. Indonesia also leverages its geographic position as gatekeeper of the Strait of Malacca to negotiate technological concessions from the United States.
Under the agreement, the Indonesian military focused on enhancing operational capacity and interoperability. Indonesia plans to build domestic maintenance, repair, and overhaul capabilities to reduce dependence on global supply chains, and to develop underwater sensor networks and autonomous drones to guard its exclusive economic zone.
A classified document titled "Operationalizing US Overflight" revealed the Pentagon's desire for rapid transit corridors from the Pacific to the Indian Ocean. The U.S. considers Indonesian airspace a vital link connecting Pacific bases to conflict theaters in South Asia and the Middle East. The Indonesian Defense Ministry stated that airspace sovereignty remains absolute and that overflight permissions are granted on a case-by-case basis. The Indonesian Foreign Ministry expressed concerns about an "alliance trap."
The deepening of U.S.-Indonesia ties through the partnership raised concerns in Beijing. "Military cooperation between nations must not target third parties or jeopardize regional peace," Chinese Foreign Ministry spokesperson Mao Ning said. China is aware that Indonesia's access to U.S. subsurface and asymmetric technology will increase operational risks for Chinese research and coast guard vessels in the North Natuna Sea.