sentences:  Under his guidance, 14 mostly earthen redoubts were planned and built, taking advantage of the terrain, and anchored by the earthen Fort Magruder at the junction of the roads to Williamsburg leading from Lee's Mill and Yorktown.Several of the redoubts to the southwest were located near (and west) of the Quarterpath Road and protected it.In the 1862 Peninsula Campaign, Union forces commanded by Maj. Gen. George B. McClellan attempted to move northwesterly up the Peninsula from Fort Monroe and capture the Confederate capital of Richmond by circumventing the Confederate States Army in northern Virginia.