Taiwanese submarine to undergo ASW drills after upgrade

Taiwan plans to deploy the recently upgraded submarine ROCS Hai Lung in anti-submarine warfare exercises scheduled from October 28 through November 27, 2026. The training is expected to include surface vessels, P-3C maritime patrol aircraft and S-70C helicopters, providing different detection and tracking methods against a realistic undersea target. Multiple phases will assign participating forces different tactical roles to assess coordination between the submarine and anti-submarine units. The drills are a scheduled training and post-upgrade evaluation activity, rather than evidence of a new submarine purchase or independent verification of combat performance.