As officers in the Federal Army of the Potomac voice opposition to their commander and the soldiers threaten mutiny, General Ambrose Burnside gives President Abraham Lincoln an ultimatum.

Exploring the most important 55 months in American history
As officers in the Federal Army of the Potomac voice opposition to their commander and the soldiers threaten mutiny, General Ambrose Burnside gives President Abraham Lincoln an ultimatum.
Ambrose E. Burnside prepares to launch another offensive intended to restore his reputation and revitalize the demoralized Army of the Potomac.
President Abraham Lincoln seeks to clarify responsibility for the defeat at Fredericksburg and console the Army of the Potomac, while several generals begin to conspire against their commander.
July 15, 1864 – As the Federals outside Petersburg settled in for long-term siege operations, Confederates finally began digging countermines to try to find the
June 18, 1864 – Federal forces launched yet another assault on the Petersburg defenses, but by this time General Robert E. Lee’s Confederate Army of
June 15, 1864 – Federal forces advanced on the vital transportation center of Petersburg, south of Richmond, and missed a prime opportunity to capture the