For the person who took the swipe at Alvin York above, York was no "happy killer." He was a poorly educated man from the Appalachian hollows who followed his orders and did his best for the men around him. After his heroic stand, he spent the next two days desperately searching the battlefield for someone, in any uniform, he might save. He suffered from PTSD (as we now call it) and nightmares for the rest of his life.
I've never worn a uniform, but those who have not and consider themselves superior to those who do sicken and anger me.