American Civil War: On the third attempt, Union forces captured Petersburg, Virginia, although Confederate officials and most of their remaining troops were able to escape.

The American Civil War was a civil war in the United States between the Union and the Confederacy, which was formed in 1861 by states that had seceded from the Union. The central conflict leading to war was a dispute over whether slavery should be permitted to expand into the western territories, leading to more slave states, or be prohibited from doing so, which many believed would place slavery on a course of ultimate extinction.

The Union was the central government of the United States during the American Civil War. Its civilian and military forces resisted the Confederacy's attempt to secede following the election of Abraham Lincoln as president of the United States. Lincoln's administration asserted the permanency of the federal government and the continuity of the United States Constitution.

The Third Battle of Petersburg, also known as the Breakthrough at Petersburg or the Fall of Petersburg, was fought on April 2, 1865, south and southwest Virginia in the area of Petersburg, Virginia, at the end of the 292-day Richmond–Petersburg Campaign and in the beginning stage of the Appomattox Campaign near the conclusion of the American Civil War. The Union Army under the overall command of General-in-Chief Lieutenant General Ulysses S. Grant, launched an assault on General Robert E. Lee's Confederate Army of Northern Virginia's Petersburg, Virginia, trenches and fortifications after the Union victory at the Battle of Five Forks on April 1, 1865. As a result of that battle the Confederate right flank and rear were exposed. The remaining supply lines were cut and the Confederate defenders were reduced by over 10,000 men killed, wounded, taken prisoner or in flight.

Petersburg is an independent city in the Commonwealth of Virginia in the United States. As of the 2020 census, the population was 33,458 with a majority black American population. The Bureau of Economic Analysis combines Petersburg with Dinwiddie County for statistical purposes. The city is 21 miles (34 km) south of the commonwealth (state) capital city of Richmond.