Information:  - 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.  - A lieutenant (abbreviated Lt., LT, LTA, Lieut., LEUT and LEUT.) is a junior commissioned officer in many nations' armed forces, fire service or police.  - The Code of Laws of the United States of America (variously abbreviated to Code of Laws of the United States, United States Code, U.S. Code, or U.S.C.) is the official compilation and codification of the general and permanent federal statutes of the United States. It contains 52 titles, and a further three titles have been proposed. The main edition is published every six years by the Office of the Law Revision Counsel of the House of Representatives, and cumulative supplements are published annually. The official version of those laws not codified in the United States Code can be found in United States Statutes at Large.  - World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World War II the deadliest conflict in human history.  - 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).  - 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.  - 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.  - 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 Richmond and Petersburg Railroad moved passengers and goods between Richmond and Petersburg from 1838 to 1898. It survived the American Civil War and  eventually merged into the main line on the east coast of the United States. History. The Richmond and Petersburg was founded in 1836 and sold in 1898. It survived a war and several financial panics. It went from a railroad that only connected trains from Richmond to Petersburg, to a part of an entire east coast system. It went from a slave economy to having fully paid employees.  - 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.  - A court-martial (plural courts-martial, as "martial" is postpositive) is a military court. A court-martial is empowered to determine the guilt of members of the armed forces subject to military law, and, if the defendant is found guilty, to decide upon punishment. In addition, courts-martial may be used to try prisoners of war for war crimes. The Geneva Convention requires that POWs who are on trial for war crimes be subject to the same procedures as would be the holding military's own forces.  - Dereliction of duty is a specific offense under United States Code Title 10, Section 892, Article 92 and applies to all branches of the US military. A service member who is derelict has willfully refused to perform his duties (or follow a given order) or has incapacitated himself in such a way that he "cannot" perform his duties. Such incapacitation includes the person falling asleep while on duty requiring wakefulness, his getting drunk or otherwise intoxicated and consequently being unable to perform his duties, shooting himself and thus being unable to perform any duty, or his vacating his post contrary to regulations. Article 92 also applies to service members whose acts or omissions rise to the level of criminally negligent behavior. The first such case charged occurred during World War II, when Army Air Force Lieutenants William Sincock and Theodore Balides were court-martialed for dereliction of duty when they mistakenly dropped bombs on Zürich, a city of Switzerland, which was a neutral country during that war. Both men were later acquitted.  - 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.  - 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 siege is a military blockade of a city or fortress with the intent of conquering by attrition or assault. This derives from "sedere", Latin for "to sit". Siege warfare is a form of constant, low-intensity conflict characterized by one party holding a strong, static defensive position. Consequently, an opportunity for negotiation between combatants is not uncommon, as proximity and fluctuating advantage can encourage diplomacy.  - 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.  - 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.  - James Hewett Ledlie ( April 14 , 1832 -- August 15 , 1882 ) was a civil engineer for American railroads and a general in the Union Army during the American Civil War . He is best known for his dereliction of duty at the Battle of the Crater during the Siege of Petersburg .    Given the information above, choose from the list below the object entity that exhibits the relation 'occupation' with the subject 'james h. ledlie'.  Choices: - army  - diplomacy  - engineer  - general  - lieutenant  - major  - member  - military  - officer  - president  - revolutionary  - slave  - united states of america
Answer:
officer