It would depend a lot on what he did over there. Not every draftee was sent straight into combat in the jungle... like any army, ours had a big tail and smaller bite, in that there were more men involved in logistics and REMF. If he actually was sent into combat, I'd imagine if he ever became a writer, his works would be a lot different. If he was a REMF, then he might write the same stuff, but with more accuracy for those POVs of REMFs...