The main character of Fog Of War is Rex Richards. He has a photographic memory, and he also was the youngest Delta Force soldier which is often referred to as “The Unit,” and it’s easy to see why because everyone in it is an elite soldier. Rex finally wants to shake free of his past and use the science degree he earned at R. Winters Medical University. As Rex is about to learn, he can change his profession, but he can’t change his past. Who he is and what he’s done will haunt him like a ghost for the rest of his life.