Dog Fight Over the Trenches, by Horace Pippin, 1935. Pippin wrote about the front-line trenches, "I will say this much, I say no man can do it again. He may have the will but his body cannot stand it. I could tell a new man every time I seen him, for he would duck every time a shell came over. He would be ducking all day long until he would get used to it." PMA