Few Marines these days get killed because they step up and do their job. What kills American soldiers, including Marines, is PROE. That's Pussy Rules of Engagement. "Sure you can carry your rifle, but no bullets." That's obviously an exaggeration, but you get the idea. "Go ahead and return enemy fire, but only after you have been shot." I am confident President Walker will give the same instructions and use the same ROEs that FDR gave Eisenhower: "Do whatever you have to do; just go win it."
Sad thing is with war. Nobody comes out a winner.