8 major battles of the Petersburg Campaign   actions dates significance 1 Opening assaults on Petersburg June15-18 1864 end of overland campaign 2 Battle of the Crater July 30,1864 major effort to take Petersburg fails 3 Battle of the Weldon Railroad August18-21,1864 major supply line for Lee blocked 4 New Market Heights Sept 29-30 ,1864 Federals make closest lodgement to Richmond 5 Hatcher's Run October27,1864 Lee blocks Grant but overextends his army 6 Fort Stedman March 25,1865 Lee's final assault fails 7 Five Forks April1,1865 Sheridan cut Lee's final railroad 8 Final assaults on Petersburg April 2,1865 Richmond and Petersburg fall April 3, Lee surrenders April 9 Content provided by: Mike, lifelong student of the Civil War Comments: Petersburg is one of the most important and least known campaigns of the civil war