<Table> <Tr> <Th_colspan="2"> Siege of Petersburg </Th> </Tr> <Tr> <Td_colspan="2"> Part of the American Civil War </Td> </Tr> <Tr> <Td_colspan="2"> The "Dictator" siege mortar at Petersburg . In the foreground, the figure on the right is Brig. Gen. Henry J. Hunt, chief of artillery of the Army of the Potomac . </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Date </Th> <Td> June 9, 1864--March 25, 1865 (9 months, 2 weeks and 2 days) </Td> </Tr> <Tr> <Th> Location </Th> <Td> Petersburg, Virginia </Td> </Tr> <Tr> <Th> Result </Th> <Td> Union victory </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> United States </Td> <Td> Confederate States </Td> </Tr> <Tr> <Th_colspan="2"> Commanders and leaders </Th> </Tr> <Tr> <Td> Ulysses S. Grant George Meade Benjamin Butler </Td> <Td> Robert E. Lee P.G.T. Beauregard </Td> </Tr> <Tr> <Th_colspan="2"> Units involved </Th> </Tr> <Tr> <Td> <Ul> <Li> Army of the Potomac </Li> <Li> Army of the James </Li> </Ul> </Td> <Td> Army of Northern Virginia Department of North Carolina and Southern Virginia </Td> </Tr> <Tr> <Th_colspan="2"> Strength </Th> </Tr> <Tr> <Td> 67,000--125,000 </Td> <Td> ∼ 52,000 </Td> </Tr> <Tr> <Th_colspan="2"> Casualties and losses </Th> </Tr> <Tr> <Td> 42,000 (estimate) </Td> <Td> 28,000 (estimate) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Siege of Petersburg </Th> </Tr>

Where did the siege of petersburg take place