On May 4, 2026, Japan's Defence Minister Shinjiro Koizumi met Indonesia's Sjafrie Sjamsoeddin in Jakarta for talks on defence cooperation, including potential exchanges in equipment and technology, following Japan's easing of arms export restrictions. No defence agreement was signed, with details undisclosed. Concurrently, Japan's Prime Minister Sanae Takaichi met Australia's Anthony Albanese to agree on deeper cooperation in defence, energy security, and critical minerals.