There’s an unseen world war that has been fought for years with no clear battle lines, few rules of engagement, and no end in sight.

But it’s not a shooting war; not a war where combatants have been killed or wounded — at least not yet.

It’s a war that pits nations against each other for dominance in cyberspace, and the United States, like other nations employing professional hackers as “cyber soldiers,” sees it as a battlefield just like any other.

“It’s like an operational domain: Sea, land, air, space, and cyber,” Charlie Stadtlander, chief spokesperson for US Army Cyber Command, told Tech Insider. “It’s a place where our presence exists. Cyber is a normal part of military operations and needs to be considered as such.”

As US military leaders warn of the growing progress of Russia, China, and North Korea in cyberspace, the Pentagon has ramped up its own efforts in what it calls the “cyber domain” after the release of a new cyber strategy in April 2015.

Read More- Tech Insider

Image courtesy of CBS News