Key facts
- The exercise aimed to strengthen mine warfare capabilities and interoperability.
South Korea and the United States concluded the ninth Multi-National Mine Warfare Exercise 2026 off Busan on Friday. The exercise involved 15 partner nations aiming to enhance mine warfare capabilities and interoperability through combined maritime operations.

The exercise strengthens multinational cooperation in maritime mine countermeasures, enhancing regional security and naval interoperability in a critical maritime area.
South Korea and the United States concluded a multinational maritime mine warfare exercise off the port city of Busan on Friday, October 21, 2026. The ninth iteration of the Multi-National Mine Warfare Exercise 2026 brought together mine countermeasures vessels, explosive ordnance disposal personnel, clearance divers, and autonomous underwater vehicles from 15 partner nations. The drills were designed to enhance mine warfare capabilities and interoperability among participating navies through combined maritime operations. Activities included mine-hunting, harbor clearance, mine detection and neutralization, and seabed surveys. The U.S. Navy deployed the USS Chief, an Avenger-class mine countermeasures ship, while the South Korean Navy contributed mine laying and hunting vessels. Partner nations such as Japan, Canada, the Philippines, Singapore, and Thailand also participated.
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