You bitch about European winters! HAH!! I do the polar dip every year here in Canada. If I can last in below freezing waters, naked with nothing but swimming trunks. I'd have no problem with the cold if I was keeping myself warm with killing other men.

I'm quite doubtful about that. In antiquity you could actually SEE the enemy and you can DO something to avoid death. You could be succesful or not, but your destiny was influenced by your skills.

Today, death come from far away. You can do nothing against an hidden sniper, or even a good aiming enemy soldier with an assault rifle. Needless to talk about any form of artillery.

I think today a soldier is MUCH more subject to fear, because he knows that he could have nothing to do to avoid death.
I think seeing thousands of angry heavilly armed men rushing at you is much more frightening than a sniper. To fight on the ancient battlefield you must mentally prepare yourself. I am more inclined to believe the fear factor on both the modern battlefield and those of the classical era would be quite similar. The same way you stand on the line and prepare yourself to go toe to toe with the romans, or celts, or persians, or whathave you, is the SAME mental preparation you'd have done to take that step out of your C-47, to step off the landing craft onto France, to go over the top! It's all the same. Every soldier must prepare himself for the moment that is to come. To take that first step out the back of your LAV in an ambush, its the same feeling the boys felt when they went over the top.
You cannot make the assumption it's not. There is no way in Hell you could prove otherwise.