Mars in Gemini is an underrated placement.

It gets talked about as being unfocused but I have noticed that Alexander the Great, MLK, The United States of America, Tom Brady, The Terminator, Mike Tyson, and Julius Caesar all had this placement.

Come to think of it, I think Mars in a Mercury based signs makes someone very strategic and the type to think before they act as opposed to emotional (like water signs) or short-tempered (like fire signs). Like the kind of people who will think before they act but when they do, there was a lot of game planning and though put into it.