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Pvt. Frederick Watkins, center, detonates a doughnut charge from behind a berm and blasts the hinges off a door Wednesday at Rodriguez Range, South Korea. Soldiers from the 2nd Infantry Division's 1st Battalion, 72nd Armor, Echo Company, showed South Korean soldiers how to set various breach charges during the combat engineer training event.

Pvt. Frederick Watkins, center, detonates a doughnut charge from behind a berm and blasts the hinges off a door Wednesday at Rodriguez Range, South Korea. Soldiers from the 2nd Infantry Division's 1st Battalion, 72nd Armor, Echo Company, showed South Korean soldiers how to set various breach charges during the combat engineer training event. (Erik Slavin / S&S)

Pvt. Frederick Watkins, center, detonates a doughnut charge from behind a berm and blasts the hinges off a door Wednesday at Rodriguez Range, South Korea. Soldiers from the 2nd Infantry Division's 1st Battalion, 72nd Armor, Echo Company, showed South Korean soldiers how to set various breach charges during the combat engineer training event.

Pvt. Frederick Watkins, center, detonates a doughnut charge from behind a berm and blasts the hinges off a door Wednesday at Rodriguez Range, South Korea. Soldiers from the 2nd Infantry Division's 1st Battalion, 72nd Armor, Echo Company, showed South Korean soldiers how to set various breach charges during the combat engineer training event. (Erik Slavin / S&S)

Cpl. Vance Young, right, of the 2nd Infantry Division's 1st Battalion, 72nd Armor, Echo Company, shows South Korean soldiers how to set a silhouette charge.

Cpl. Vance Young, right, of the 2nd Infantry Division's 1st Battalion, 72nd Armor, Echo Company, shows South Korean soldiers how to set a silhouette charge. (Erik Slavin / S&S)

RODRIGUEZ RANGE, South Korea — Subtlety is rarely associated with an armor battalion.

But mixed among the tankers and Bradley crews are soldiers who rely less on 120 mm guns and more on duct tape and detonation cord to do their jobs.

As urban combat continues to dictate more of the Army’s training, units like the 2nd Infantry Division’s 1st Battalion, 72nd Armor, Echo Company combat engineers are finding their skills in rising demand.

On Wednesday, the soldiers showed South Korean combat engineers their techniques for breaching doors, walls and other obstacles soldiers need to get through.

Doughnut, silhouette and flexible linear charges each use different methods, but they’re all relatively simple for soldiers on the move to employ.

In many cases, these "breach charges" are used to blow off door hinges or doorknobs prior to entry.

"It gives us easy access with the element of surprise," said Cpl. Vance Young while he and a translator explained the methods to South Korean 26th Division Engineering Battalion.

The tape, cord and trigger are all lightweight and can be set up quickly, said Staff Sgt. Sovath Keo, who says he used his skills every day in Iraq in 2003.

The low-tech materials are sturdy and work in a variety of conditions, he said.

"Taped up underwater, it will have the same effect," Keo said.

South Korean combat engineers primarily work with mines; however, urban demolition knowledge would come in handy during war, said Lt. Jeon Chin-Hwan of the Korean battalion.

"If one of our countries is ever under attack, this is the kind of training that will help us save time on strategy," Jeon said.

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