Border states (American Civil War) in the context of "Virginia in the American Civil War"

Missouri (see pronunciation) is a landlocked state in the Midwestern region of the United States. Ranking 21st in land area, it borders Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas to the south and Oklahoma, Kansas, and Nebraska to the west. In the south are the Ozarks, a forested highland, providing timber, minerals, and recreation. At 1.5 billion years old, the St. Francois Mountains are among the oldest in the world. The Missouri River, after which the state is named, flows through the center and into the Mississippi River, which forms the eastern border. With over six million residents, it is the 19th-most populous state of the country. The largest urban areas are St. Louis, Kansas City, Springfield, and Columbia. The capital is Jefferson City.

Humans have inhabited present-day Missouri for at least 12,000 years. The Mississippian culture, which emerged in the ninth century, built cities with pyramidal and other ceremonial mounds before declining in the 14th century. The Indigenous Osage and Missouria nations inhabited the area when European people arrived in the 17th century. The French incorporated the territory into Louisiana, founding Ste. Genevieve in 1735 and St. Louis in 1764. After a brief period of Spanish rule, the United States acquired Missouri as part of the Louisiana Purchase in 1803. Americans from the Upland South rushed into the new Missouri Territory, taking advantage of its productive agricultural plains; Missouri played a central role in the westward expansion of the United States. Missouri was admitted as a slave state as part of the Missouri Compromise of 1820. As a border state, Missouri's role in the American Civil War was complex, and it was subject to rival governments, raids, and guerilla warfare. After the war, both Greater St. Louis and the Kansas City metropolitan area became large centers of industrialization and business.

The Union is a term used to refer to the central government and loyal states of the United States during the American Civil War. Its military forces and civilian population resisted the purported secession of the slave states that formed the Confederate States of America following the 1860 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, and it refused to recognize the Confederate government.

Nineteenth-century Americans commonly used the term Union to mean either the federal government of the United States or the unity of the states within the federal constitutional framework. The Union can also refer to the people or territory of the states that remained loyal to the national government during the war. The loyal U.S states located mostly above the Mason–Dixon line were also known as the North, although four southern border states and the future state of West Virginia remained loyal to the Union, and Black Southerners and many Southern Unionists opposed secession and supported the Union war effort.

West Virginia is a state in the Southern and Mid-Atlantic regions of the United States. Mountainous, it is bordered by Pennsylvania and Maryland to the northeast, Virginia to the southeast, Kentucky to the southwest, and Ohio to the northwest. West Virginia is the 10th-smallest state by area and ranks as the 12th-least populous state, with a population of 1,769,979 residents. The capital and most populous city is Charleston with a population of 49,055.

West Virginia was admitted to the Union on June 20, 1863, and was a key border state during the American Civil War. It separated from Virginia and was one of two states (along with Nevada) admitted to the Union during the Civil War. Some of its residents held slaves, but most were propertied farmers, and the delegates provided for the gradual abolition of slavery in the new state constitution. The state legislature abolished slavery in the state, and at the same time ratified the 13th Amendment abolishing slavery nationally on February 3, 1865.

The Mason–Dixon line, sometimes referred to as Mason and Dixon's Line, is a demarcation line separating four U.S. states: Pennsylvania, Maryland, Delaware and West Virginia. It was surveyed between 1763 and 1767 by English surveyors and astronomers Charles Mason and Jeremiah Dixon as part of the resolution to Cresap's War, a border conflict involving Maryland, Pennsylvania, and Delaware (then a part of Pennsylvania) in the colonial United States.

The largest portion of the Mason–Dixon line, along the southern Pennsylvanian border, later became informally known as the boundary between the Southern slave states and Northern free states. This usage came to prominence during the debate around the Missouri Compromise of 1820, when drawing boundaries between slave and free territory, and resurfaced during the American Civil War, with border states also coming into play. The Confederate States of America claimed the Virginian (now West Virginia) portion of the line as part of its northern border, although it never exercised meaningful control that far north – especially after West Virginia separated from Virginia and joined the Union as a separate state in 1863. It is still used today in the figurative sense of a line that separates the Northeast and South regionally, politically, and socially (see Dixie).

In the United States, Southern Unionists were white Southerners living in the Confederate States of America and the Southern Border States opposed to secession. Many fought for the Union during the Civil War. These people are also referred to as Southern Loyalists, Union Loyalists, or Lincoln's Loyalists. Pro-Confederates in the South derided them as "Tories" (in reference to the pro-Crown Loyalists of the American Revolution). During Reconstruction, these terms were replaced by "scalawag" (or "scallywag"), which covered all Southern whites who supported the Republican Party.

Tennessee (especially East Tennessee), Kentucky, Maryland, Missouri, Delaware, North Carolina, and Virginia (which included West Virginia at that time) were home to the largest populations of Unionists. Other (primarily Appalachian) areas with significant Unionist influence included North Alabama, North Georgia, Western North Carolina, the Texas Hill Country, northern Loudoun County in Virginia, North Mississippi, North Texas, the Arkansas Ozarks, and the Boston Mountains in Arkansas. These areas provided thousands of volunteers for Union military service. Western North Carolinians, for example, formed their own loyalist infantry, cavalry, and artillery regiments, while West Virginians formed a new Union state admitted in 1863.

The conclusion of the American Civil War commenced with the articles of surrender agreement of the Army of Northern Virginia on April 9, at Appomattox Court House, by General Robert E. Lee and concluded with the surrender of CSS Shenandoah on November 6, 1865, bringing the hostilities of the American Civil War to a close. Legally, the war did not end until a proclamation by President Andrew Johnson on August 20, 1866, when he declared "that the said insurrection is at an end and that peace, order, tranquillity, and civil authority now exist in and throughout the whole of the United States of America." The Confederate government being in the final stages of collapse, the war ended by debellatio, with no definitive capitulation from the rapidly disintegrating Confederacy; rather, Lee's surrender marked the effective end of Confederate military operations. The Confederate cabinet held its final meeting on May 5, at which point it declared the Confederacy dissolved, ending its substantive existence; despite this, some remnant Confederate units did not surrender for another month.

Lee's defeat on April 9 began the effective end of the war, after which there was no substantial resistance, but the news of his surrender took time to spread and some fighting continued, though only small skirmishes. President Abraham Lincoln lived to see Lee's surrender after four bloody years of war, but he was assassinated just five days later. The Battle of Columbus, Georgia, was fought on April 16, the day after Lincoln died. For the most part though, news of Lee's defeat led to a wave of Confederate surrenders. Gen. Joseph E. Johnston surrendered his large Army of Tennessee and the Southeastern Department on April 26. The Confederate cabinet was dissolved on May 5, and Confederate president Jefferson Davis was captured by Union soldiers on May 10, one day after Lincoln's successor, Andrew Johnson, declared that the belligerent rights of the Confederacy were at an end, with the rebellion effectively over.

The Presbyterian Church (USA), abbreviated PCUSA, is a mainline Protestant denomination in the United States. It is the largest Presbyterian denomination in the United States. Its theological roots lie primarily in the Scottish Reformation, particularly going back to the reforms done by the Calvinist reformer and minister John Knox of Scotland. Now known for its generally liberal stance on doctrine, The Presbyterian Church (USA) was established with the 1983 merger of the Presbyterian Church in the United States, whose churches were located in the Southern and border states, with the United Presbyterian Church in the United States of America, whose congregations could be found in every state.

The church maintains a Book of Confessions, a collection of historic and contemporary creeds and catechisms, including its own Brief Statement of Faith. It is a member of the World Communion of Reformed Churches. The similarly named Presbyterian Church in America (PCA) is a separate denomination whose congregations can also trace their history to the various schisms and mergers of Presbyterian churches in the United States. Unlike the more conservative Presbyterian Church in America, the Presbyterian Church (USA) supports the ordination of women and affirms same-sex marriages. It also welcomes practicing gay and lesbian persons to serve in leadership positions as ministers, deacons, elders, and trustees.

Kentucky was a southern border state of key importance in the American Civil War. It officially declared its neutrality at the beginning of the war, but after a failed attempt by Confederate General Leonidas Polk to take the state of Kentucky for the Confederacy, the legislature petitioned the Union Army for assistance. Though the Confederacy controlled more than half of Kentucky early in the war, after early 1862 Kentucky came largely under U.S. control. In the historiography of the Civil War, Kentucky is treated primarily as a southern border state, with special attention to the social divisions during the secession crisis, invasions and raids, internal violence, sporadic guerrilla warfare, federal-state relations, the ending of slavery, and the return of Confederate veterans.

Kentucky was the site of several fierce battles, including Mill Springs and Perryville. It was the arena to such military leaders as Ulysses S. Grant on the Union side, who first encountered serious Confederate gunfire coming from Columbus, Kentucky, and Confederate cavalry leader Nathan Bedford Forrest. Forrest proved to be a scourge to the Union Army in western Kentucky, even making an attack on Paducah. Kentuckian John Hunt Morgan further challenged Union control, as he conducted numerous cavalry raids through the state.