What was the reason that Burnside failed at Fredericksburg?

How was the war going for the allies by the time the US was ready to join the war in June of 1917? When was the neutral mask invented? What year was the Transportation Department established? How did the war on the eastern front end? Which type of source would you consult for soldier's accounts of war in obscure terrainWhich type of source would you consult for soldier's accounts of war in obscure terrain? Agreement to limit missile buildup? What event from the early 1900s would explain the change in oil production from 1900 to 1910? What are two general effects or hardships experience during the civil war? Why are members of the Creighton family so divided about the idea of secession from the Union? What are some of the forces that can encourage or repress theater? How did the German Luftwaffe terrorize London? What kind of sandwich started the cold war? When did Simon bolivar conquer the Inca? What did a sailor do during world war 2? Why is sand island called midway island? WHATHitler's invasion of which country sparked the official beginning of World War 2? What three things plagued Lincoln while the civil war progressed badly for th north? Who has ears like bombs? Where was the battle at wounded knee fought? What does Lusitania mean in World War 1?