The world’s militaries, led by the U.S. and now South Korea, are moving quickly to build and deploy so-called “EMP bombs,” that could wipe out electricity and computers in a neighborhood and buildings the size of the Pentagon without a nuclear blast.

South Korea, saying it is countering similar efforts in North Korea, announced this week that it will be the latest to begin building the bombs.

“We will push to come up with more creative, innovative ways to manage our military, going beyond the old approach that was mainly about catching up with others rather than moving ahead of them,” said Defense Minister Han Min-koo this week, according to the Korea Herald.

It is known as an “E-bomb,” that can spray out electromagnetic power to damage all electronic devices, even part of an electrical grid.

The E-bombs, or missiles in some cases, allow militaries to target buildings and neighborhoods instead of using a small nuclear bomb that would be more far reaching and result in a heavy death toll.

The U.S. has been working on a similar bomb and developer Boeing has a video posted showing how it can wipe out computers and cameras in a single office.

The Boeing weapon is called CHAMP for Counter-electronics High-powered Microwave Advanced Missile Project.

"This technology marks a new era in modern-day warfare," said Keith Coleman, CHAMP program manager for Boeing Phantom Works, in a Boeing release. "In the near future, this technology may be used to render an enemy’s electronic and data systems useless even before the first troops or aircraft arrive."

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at pbedard@washingtonexaminer.com.