This Jack Oleck script is occupied with time travel much in the way the other story with Robbins that is in Weird War Tales #27.
Here Robbins carries an American soldier into the past to try and prevent the invention of advanced weapons. It's essentially an adventure tale, and drawn that way with a WW2 era G.I. juxtaposed into a medieval-quasi-renaissance location. Oleck's script contains a nice loop plot gimmick, and reminds one of how for a certain amount of time, Weird War was DC comics most inventive realm of story telling in the 1970s.
"he doesn't know! he can't understand what they will do with them!"
