SEOUL — The U.S. Army’s 2nd Infantry Division last week kicked off its Warfighter exercise — computer-simulated training in which commanders practice responding to military threats in South Korea.

The biennial exercise tests commanders’ responses to battle situations, said Lt. Col. Thomas Traczyk, the chief of plans for the division. It also tests their ability to use available units and equipment to meet different threats, as well as tests the Army’s overall Battle Command System, he said.

The exercise, which takes place in U.S. Army Garrison-Red Cloud, is part of a three-prong effort to keep commanders in South Korea ready despite the quick turnover here, Traczyk said.

Typically, most assignments in South Korea last one year.

Earlier this year, commanders trained in Warpath I and Warpath II, yearly exercises, Traczyk said.

Warfighter includes commanders and command staff from the division’s brigades — 1st Heavy Brigade Combat Team, the 210th Fires Brigade, and the 2nd Combat Aviation Brigade. Other participants are from the Battle Command Training Program in Fort Leavenworth, Kan., and the South Korean army.

The exercise began Dec. 11 and is scheduled to run through Thursday.