The third battle of Petersburg is one of the many battles of the civil war. The third battle of Petersburg was April 1-3 1865. The battle took place in Dinwiddie country near Petersburg, Virginia. The battle ended up being a Union victory. It was one of the later battles in the war, forcing Lee to retreat and in about a week Lee had surrendered at Appommatox. This battle of Petersburg is also known as the Breakthrough At Petersburg and the Fall of Petersburg.