Troop engagements of the American Civil War, 1863

Lee was forced to retreat back to Virginia; Meade followed in close pursuit but was unable to find an opportunity to completely crush the Confederate army.

Ulysses S. Grant started the Vicksburg campaign near the end of April when he crossed the Mississippi River near Bruinsburg Landing, south of Grand Gulf.

A rear guard action by Patrick Cleaburne at Ringgold Gap halted the Union pursuit long enough for Bragg to reach safety.

In order to cut off the Trans-Mississippi supply lines to Port Hudson, Major General Nathaniel P. Banks moved up the Bayou Teche in Louisiana during April.

For the remainder of the summer, Confederate commander Major General Richard Taylor attempted to cut off Banks' supply lines to New Orleans but failed.

In September, Union forces tried to invade eastern Texas to counteract the French invasion of Mexico but were defeated at Sabine Pass, losing two gunboats and 350 men while the Confederates suffered no casualties.