query: occupation henry pleasants
supports: The American Civil War was a civil war in the United States fought from 1861 to 1865. The Union faced secessionists in eleven Southern states grouped together as the Confederate States of America. The Union won the war, which remains the bloodiest in U.S. history. The Bureau of Economic Analysis (BEA) is a U.S. government agency that provides official macroeconomic and industry statistics including the gross domestic product of the United States. Petersburg is an independent city in the U.S. state of Virginia. As of the 2010 census, the population was 32,420. The Bureau of Economic Analysis combines Petersburg (along with the city of Colonial Heights) with Dinwiddie County for statistical purposes. It is located on the Appomattox River and south of the state capital of Richmond. The city's unique industrial past and its location as a transportation hub combined to create wealth for Virginia and the region. The Union Army was the land force that fought for the Union during the American Civil War, 1861 to 1865. It included the permanent regular army of the United States, which was augmented by massive numbers of temporary units consisting of volunteers as well as conscripts. The Union Army fought and eventually defeated the Confederate Army during the war. At least two and a half million men served in the Union Army; almost all were volunteers. About 360,000 Union soldiers died from all causes; 280,000 were wounded and 200,000 deserted. The Army of Northern Virginia was the primary military force of the Confederate States of America in the Eastern Theater of the American Civil War, as well as the primary command structure of the Department of Northern Virginia. It was most often arrayed against the Union Army of the Potomac. The RichmondPetersburg Campaign was a series of battles around Petersburg, Virginia, fought from June 9, 1864, to March 25, 1865, during the American Civil War. Although it is more popularly known as the Siege of Petersburg, it was not a classic military siege, in which a city is usually surrounded and all supply lines are cut off, nor was it strictly limited to actions against Petersburg. The campaign consisted of nine months of trench warfare in which Union forces commanded by Lt. Gen. Ulysses S. Grant assaulted Petersburg unsuccessfully and then constructed trench lines that eventually extended over from the eastern outskirts of Richmond, Virginia, to around the eastern and southern outskirts of Petersburg. Petersburg was crucial to the supply of Confederate Gen. Robert E. Lee's army and the Confederate capital of Richmond. Numerous raids were conducted and battles fought in attempts to cut off the Richmond and Petersburg Railroad. Many of these battles caused the lengthening of the trench lines, overloading dwindling Confederate resources. The Battle of the Crater was a battle of the American Civil War, part of the Siege of Petersburg. It took place on July 30, 1864, between the Confederate Army of Northern Virginia, commanded by General Robert E. Lee and the Union Army of the Potomac, commanded by Maj. Gen. George G. Meade (under the direct supervision of the general-in-chief, Lt. Gen. Ulysses S. Grant). A U.S. state is a constituent political entity of the United States of America. There are 50 states, which are bound together in a union with each other. Each state holds administrative jurisdiction over a defined geographic territory, and shares its sovereignty with the United States federal government. Due to the shared sovereignty between each state and the federal government, Americans are citizens of both the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons covered by certain types of court orders (e.g., paroled convicts and children of divorced spouses who are sharing custody). Robert Edward Lee (January 19, 1807  October 12, 1870) was an American general known for commanding the Confederate Army of Northern Virginia in the American Civil War from 1862 until his surrender in 1865. The son of Revolutionary War officer Henry "Light Horse Harry" Lee III, Lee was a top graduate of the United States Military Academy and an exceptional officer and military engineer in the United States Army for 32 years. During this time, he served throughout the United States, distinguished himself during the MexicanAmerican War, and served as Superintendent of the United States Military Academy. A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common censuses include agriculture, business, and traffic censuses. The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every 10 years. United Nations recommendations also cover census topics to be collected, official definitions, classifications and other useful information to co-ordinate international practice. Ulysses S. Grant (born Hiram Ulysses Grant; April 27, 1822  July 23, 1885) was the 18th President of the United States (186977). Previously, as Commanding General of the United States Army (186469), Grant had worked closely with President Abraham Lincoln to lead the Union Army to victory over the Confederacy, in the American Civil War. As president, Grant implemented Congressional Reconstruction, often at odds with Lincoln's successor, Andrew Johnson. Twice elected president, Grant led the Republicans in their effort to remove the vestiges of Confederate nationalism and slavery, protect African-American citizenship, and supported unbridled industrial expansionism during the Gilded Age. The Army of the Potomac was the principal Union Army in the Eastern Theater of the American Civil War. It was created in July 1861 shortly after the First Battle of Bull Run and was disbanded in June 1865 following the surrender of the Confederate Army of Northern Virginia in April. Henry Clay Pleasants ( February 16 , 1833 -- March 26 , 1880 ) was a coal mining engineer and a brigadier general in the Union Army during the American Civil War . He is best known for organizing the building of an underground tunnel filled with explosives under the Confederate lines outside Petersburg , Virginia , resulting in the Battle of the Crater on July 30 , 1864 , an opportunity for Union troops to break the defense of Petersburg . The Confederate States, officially the Confederate States of America (CSA or C.S.), commonly referred to as the Confederacy, was an unrecognized breakaway country of 11 secessionist slave states existing from 1861 to 1865. It was originally formed by seven slave states  South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, and Texas  in the Lower South region of the United States whose regional economy was mostly dependent upon agriculture, particularly cotton, and a plantation system that relied upon the labor of African-American slaves. Secession (derived from the Latin term "secessio") is the withdrawal of a group from a larger entity, especially a political entity (a country), but also any organization, union or military alliance. Threats of secession can also be a strategy for achieving more limited goals.
candidates: army count engineer general military officer official president slave superintendent united states army united states of america
answer: officer