A fleet of transports and supply vessels tries to duplicate David D. Porter’s feat of passing the Confederate batteries at Vicksburg and joining the Federal forces downriver.

Exploring the most important 55 months in American history
A fleet of transports and supply vessels tries to duplicate David D. Porter’s feat of passing the Confederate batteries at Vicksburg and joining the Federal forces downriver.
Colonel Benjamin Grierson sets out with 1,700 Federal cavalrymen to divert attention from Ulysses S. Grant’s army landing below Vicksburg.
Ulysses S. Grant assembles his Federal troops at Milliken’s Bend as David D. Porter prepares to pass the Vicksburg batteries with his Mississippi River Squadron.
Ulysses S. Grant finally concedes the impossibility of capturing the Confederate stronghold of Vicksburg from the north and begins to develop another, more daring, plan.
Federal Admiral David D. Porter concedes that yet another effort to reach Vicksburg using the vast network of waterways to the north has failed.
The Federal flotilla comprising the Yazoo Pass expedition turns around and goes back to its starting point after proving unable to neutralize Fort Pemberton near Greenwood, Mississippi.