"In one case that I like, somebody got the idea to examine all of the muskets collected off of the Gettysburg battlefield. I think they collected around 27,000 or so muskets. Many of the muskets were loaded twice, some were loaded thrice and a few were loaded 21 times or something absolutely crazy. Overall, 90 percent of all 27,000 muskets were loaded one or more times. If you work out the statistics around how long it takes to load a musket, and all the time there was a battle going, then if people are loading their musket and firing, you’d expect only about 5 percent to have been loaded. Of course, we don’t have videotapes of what was going on, exactly, but it points to the idea that there was a whole lot of reluctance to actually be shooting at the enemy. Now, that’s just one case from our own U.S. history, and there are others. There is a wonderful, descriptive book written by a military man and historian who served in the U.S. army [during WWII and the Korean War] named S.L.A. Marshall called Men Against Fire: The Problem of Battle Command (published in 1947). He did a series of interviews and found out that a vast majority of the combat troops were not firing at the enemy. Some were firing into the air. Some were firing into the bushes. Some were firing over the heads of the enemy. Many weren’t firing at all."