The Republic of Korea and the United States staged their largest-ever live-fire drill on Friday amid lingering tensions on the Korean Peninsula.

The one-day exercise in Pocheon, northeast of Seoul, involved some 2,000 troops along with jet fighters, tanks, Apache attack helicopters, missiles and multiple rocket launchers, the ROK defense ministry said.

In an official statement, the ministry said that the drill was aimed at checking solid military preparedness and war-fighting capabilities against enemy provocation.