The wars we’re fighting today look very different from the trenches and tanks of the last world war. Drones, cyberspace and global capitalism have changed the nature of how armies and nations interact with each other. If the globe’s major powers were to engage in combat again, what would World War III look like?

Peter W. Singer, strategist and senior fellow at the New America Foundation, talked Think Out Loud Host Dave Miller about a potential scenario presented in his book, “Ghost Fleet: A Novel of the Next World War.” Here are some of changes Singer sees that could occur:

1. On whether people think another world war is possible:

“But the problem is … for a lot of people (a war between world powers) is becoming too thinkable. That is militaries are planning for these conflicts. The U.S. and China are definitively in an arm’s race. There is no other way to argue it.”

2. On the potential effects a space war may have on earth:

“War and space is one of these things that sounds science fiction of course, but it’s not. The reality is that we have put 1,100 satellites up there, which are now the nervous system of our commerce, our communications and also conflict. Whoever controls the heavens will be able to control, in many ways, the success or failure of what happens on earth.”

3. On how technology might not be useful at all during the war:

“So you may have drones (and) stealth battleships, but what happens when GPS is taken out and you can’t find yourself on a map? Or what happens when each side is jamming each other so you first just have to find the enemy, just like back in a WWII sea battle, before you can even think about attacking them? … Basically the idea is that (the military) better be ready to fight a cyber war, but also how to navigate for when all the technology craps out.”

4. On Russia and the United States’ view on how a great powers war would go:

“The point is, when you think war will be short and easy and only work out for your side, you’re more likely to go to war whether the cause is an accident or deliberate choice.”

5. On how the president’s war concerns are changing:

“The president back in the day didn’t have to worry about ‘Am I getting the right information or has it been manipulated or blocked by someone else?’ Or in turn, ‘When I give this order, do I really know that my networks are going to carry that communication through?”

6. On what a combat pilot might be thinking while flying next to drones:

“I hope it saves my bacon, but I don’t want it to shoot down more enemies than me because it might end my job.”