 Complete the following phrase:  In the spring and summer of 1862, during the Peninsula Campaign, General George B. McClellan pushed a Union force up the Virginia Peninsula from Fort Monroe at the mouth of Hampton Roads in an attempt to capture the Confederate capital of Richmond. After McClellans troops had taken Yorktown on the York River, his army followed the retreating Confederates, and gained another victory over them on May 5, 1862, at 