After six failed attempts to reach Vicksburg, General Ulysses S. Grant developed a plan. The Yazoo Pass Expedition was a Union army/navy operation meant to bypass Vicksburg by using the backwaters of the Mississippi Delta. Operations began on February 3, 1863, with a levee breach on the Mississippi River. The expedition was delayed as a result of natural obstacles and Confederate resistance, which allowed the Confederate army under Lieutenant General John Pemberton to block passage of the Federal fleet. The Confederates continued to rebuff the fleet and finally defeated it in the spring. Larry McCluney examines the expedition from start to finish in never-before-seen detail.