"We recommended hemorrhage drills just like fire drills. For an event that doesn't happen very often, people need to practice.

VOA: standard.2010.06.23

In the past, Pyongyang has strongly condemned U.S.-South Korean drills, claiming they are preparations for an invasion of the North.

VOA: standard.2010.05.26

That warning came as South Korea's navy conducted anti-submarine warfare drills off its west coast.

VOA: standard.2010.05.27

regularly conduct drills to prepare for disaster.

VOA: standard.2010.03.30