Detailed Instructions: You are given a concept, and a list of answers. You should generate a question about the concept that leads to the given answer(s).
Problem:concept: Robert E Lee answers: ['Battle of Gettysburg', 'Battle of Mine Run', "Battle of Franklin's Crossing", 'Battle of Antietam', 'Battle of Williamsport', 'Battle of Chancellorsville', 'Battle of Appomattox Court House', 'Third Battle of Petersburg', 'Battle of Fredericksburg', 'Battle of Totopotomoy Creek']
Solution:
what battles did robert e lee participate in?