Secessionists planned to seize Fort McHenry, but Robinson made it appear that reinforcements were imminent for his small 60-man garrison, and was able to retain control of the fort.
Oprørere planlagde at sætte sig i besiddelse af Fort McHenry, men Robinson gav det udseende af, at forstærkninger var lige på trapperne til hans lille 60 mands garnison, og det lykkedes ham at bevare kontrollen over fortet.