Reynard said:
All robotic armies would be too easy to warrant EMPing the battlefield. Robots would need a LOT more refinement both physically and especially in the level of programming making them horribly expensive. As long as people are so willing to fight and die, leaders will make the most use of them with machines and equipment as support. There may be more guided drones but there will be no rise of the robots.
The last two world wars were hampered by the low level of technology. Even then the level of world wide destruction was immense. That's the point of a world war, use every means to win. That's why a third world war has always been a nightmare scenario because we have weapons that will make mass slaughter and destruction too easy without even considering the use of atomics. Each world wars is meant to be the war that ends all wars at any cost. The next one will never be a cutesy, conventional, sanitized robot war.
I can think of nothing as expensive as a human life, you see, humans don't come off the assembly line as fast as robots can. If I had a choice of sending my son or a robot into battle, I'd send the robot every time. Will the battlefield reach a level of full automation? Well if that was so, it wouldn't be so much to play, so I think 2030 will reach a level short of that. If I can go 16 years into the past to 1998, even back then I could imagine a battlefield full or robots, yet the battlefield still has humans in it. Also robot factories are much like any other factory, their are supply chains that can be disrupted by bombing. In general, the rule would be the losing side would have fewer robots to fight with, in the event of a nuclear war, the battlefield will become lower tech, with people having to pick up old fashioned assault rifles in lieu of their broken and destroyed robots. Robots will still be a new thing in 2030, much as airplanes were new in World War I. I think what will see is a battlefield full of humans fighting and the occasional robot left over from the earlier higher tech phase of the war.
EMP attacks reduce the value of whatever the opposing force is trying to conquer, it would be kind of like a pirate ship sinking a merchant ship to the bottom of the sea, instead of boarding and plundering its treasure. One must keep in mind, whoever starts the war thinks he has something to gain. Wars are rarely started just for simple destruction, though sometimes they end up that way. The enemy wants to conquer Country X, but Country X's electronic devices make them something worth conquering and an EMP attack would reduce their value and might make the whole effort pointless.
To give a modern example, Putin wants to conquer Ukraine, he'll take as much as he can, so long as he feels the risk of starting World War III is minimal. World War III would start because someone tries to do what Putin is doing now, only he misjudges the risk of general war, the enemy was willing to fight, when he judged that they wouldn't. World War III is generally a fight for survival, it may have started as an attempt at conquest, but once the nukes start flying its hard to stop them.
One possible outcome is a nonnuclear World War III, it starts much like this. Russia tries to conquer a part of Europe, because it feels the other side won't fight, but they are wrong, instead of NATO breaking up and it being every nation for itself, the Alliance sticks together and fights it out. The first phase is the conventional war, this is fought much like World War II but with higher tech weapons. Eventually someone will be winning and losing this conflict. The side that is losing will have to judge which outcome is preferable, their being defeated in a conventional war, or their using nuclear weapons and dying! If I was Russia, I would seriously consider surrendering to the Americans over dying. The United States has a history of being generous to its defeated enemies, take Germany after World War II as an example, the leaders who started the war will much like to save their scrawny hides, so they will want to negotiate an end to it.
The Americans on the other hand would be more likely to want to nuke the Russians rather than be conquered by them, given the brutal history of what Russia has done to its conquered nations in the past. if it looks like America is going to lose and the enemy is brutal and chopping heads, taking no prisoners, some people might reason they they might as well launch the nukes as surrender would be as unthinkable as nuclear war in that case.
The advantage America has is that its reputation gives enemies a reason to want to surrender rather than fight to the death.