Is cyberspace the battlefield of the future?

Cyber Space is the battlefield of today. If we don't go at it hard today, tomorrow will be to late.

It already is.

Yes and no. I'm sure it will become very important, even with some kind of catastrophic battles waged there, but I doubt that it can replace land, sea, and air.

It's already a huge part of war, just not talked about much...probably because it's not as sexy as sniper rifles and fighter jets!

Easily. Many think that dropping bombs and raining rounds on target is what constitutes modern warfare, and they'd be right. What isn't mentioned is how much more damage can be done from a computer keyboard, and HAS been done from a keyboard. It's not as "glamorous" as watching a 1200mm mortar go off, or a 60ton tank fire, or even some bearded up SF Soldier handling business, but none of them combined can shut off a city, states, nations power grid as quickly as a state sponsored hacker. None of the conventional armies in the world could wreak the havoc that a hacker with access to personal files, classified data, infrastructure, or even the GPS system, can. It's been proven with the hack into Chrysler cars, using hacked GPS to send both a aircraft and a ship off course, and let's not forget Stuxnet. There's ALWAYS going to be a need for people to rain physical pain on someone in the form of ammunition, but with the advent of the digital age, the easy access to the internet even in third world countries, the true ultimate fighting force will be holding a cup of coffee in one hand, another typing on a keyboard, and a wicked smile on their faces...from the convince of their living room. The problem is, the US is too slow to react even though we have very capable folks on our team who can go against some of the best in the world.