South Korea

It is unclear whether U.S. aircraft carriers and nuclear submarines would participate as they have in previous war games.

The move is the latest development in the dispute over how much Seoul should pay for the U.S. troop presence.

Aggressive efforts by the U.S. military in South Korea appear to be working against COVID-19.

North Korea hasn't reported any cases of the coronavirus, formally known as COVID-19, which has spread worldwide.

"The situation is quite serious," U.S. Defense Secretary Mark Esper said.

The first case of coronavirus in the U.S. military was reported in South Korea.

The possible furlough of 9,000 civilian workers could impact U.S. troops and families in South Korea.

U.S. Forces Korea is implementing a "directed self-quarantine" for all service members who have visited China since Jan. 19.

Small-scale exercises with South Korea have kept U.S. troops ready for conflict with North Korea, defense officials say.

The provision is within the 2020 National Defense Authorization Act.