South Korea and the United States staged combined marine mine countermeasure exercises off the east coast of Pohang, North Gyeongsang Province from April 1 to 9 for nine days.
 
The joint marine warfare drill in the East Sea was conducted to hone their joint anti-mine missions and strengthen their naval response capabilities in preparation for various mine warfare situations.
 
South Korea mobilized six ships, including the Nampo MLS-II minelayer, a maritime patrol aircraft, and a helicopter.

The U.S. dispatched the USS Miguel Keith, an expeditionary sea base, three naval ships, and two helicopters.