Why did the Union win the Civil War, and what were its key turning points?
Evaluate key events, issues, and individuals of the Civil War, including the election of 1860 and secession, the advantages of each side, major turning points such as Antietam, Gettysburg, and Vicksburg, and leaders such as Lincoln, Grant, and Lee (GSE SSUSH9, Domain 2).
An EOC-level answer on the Civil War for the Georgia Milestones US History exam: the election of 1860 and secession, the advantages of the North and South, key turning points (Antietam, Gettysburg, Vicksburg), Lincoln's leadership, and why the Union won, with worked stimulus and technology-enhanced questions.
Reviewed by: AI editorial process; not yet individually human-reviewed
Have a quick question? Jump to the Q&A page
Jump to a section
What this topic is asking
SSUSH9 asks you to evaluate the key events, issues, and individuals of the Civil War (1861 to 1865): how the election of 1860 triggered secession, the advantages each side held, the turning points of the fighting, and the leaders who shaped the outcome. This is a major Domain 2 topic, and questions often use a map, a chart of resources, or a quotation.
The election of 1860 and secession
So the immediate cause was the South's decision to leave the Union rather than accept a president it believed threatened slavery.
The advantages of each side
Early in the war the South's military leadership produced victories, but over time the North's overwhelming resources proved decisive.
The turning points
After 1863 the Union pressed its advantage. Grant ground down Lee's army in the East while Sherman's March cut through Georgia, and Lee surrendered to Grant at Appomattox in April 1865, ending the war.
Why the Union won
The Union victory came from its material and human resources (industry, railroads, population, navy), the strategic turning points of 1863, effective generalship under Grant and Sherman, and the steady political leadership of Abraham Lincoln, who held the war effort together and gave it the larger purpose of ending slavery.
Try this
Q1. Explain what triggered Southern secession in 1860 and 1861. [2]
- Cue. The election of Abraham Lincoln, a Republican opposed to the spread of slavery, led eleven Southern states to secede and form the Confederacy, fearing he threatened slavery; war began at Fort Sumter.
Q2. Identify one advantage of the North and one of the South in the Civil War. [2]
- Cue. North: far more population, factories, railroads, money, and the navy. South: experienced military officers and the advantage of a defensive war on home ground.
Exam-style practice questions
Practice questions written in the style of GaDOE exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
GA Milestones (US History, style)1 marksThe Battle of Gettysburg (1863) is considered a turning point of the Civil War because itShow worked answer →
A single-select item (Domain 2, SSUSH9).
Correct answer: ended General Lee's invasion of the North and put the Confederacy permanently on the defensive.
Gettysburg stopped the South's last major push into Union territory and cost it irreplaceable troops. Markers reward identifying it as the turning point that ended Confederate momentum. Distractors such as "it ended the war" (the war continued to 1865) or "it was a Confederate victory" reverse the outcome.
GA Milestones (US History, TE)2 marksDrag each advantage to the side it best describes during the Civil War: advantages are (i) more factories, railroads, and population, (ii) experienced military officers and fighting on home ground; sides are the North (Union) and the South (Confederacy).Show worked answer →
A drag-and-drop (technology-enhanced) item (Domain 2, SSUSH9).
Correct matches: more factories, railroads, and population to the North (Union); experienced military officers and fighting on home ground to the South (Confederacy).
Markers reward connecting industrial and population strength to the North and military leadership plus the defensive home-ground advantage to the South. The North's resources ultimately outweighed the South's early military edge. The trap is reversing the two.
Related dot points
- Analyze the impact of the Emancipation Proclamation and the Thirteenth Amendment, including how the war's purpose shifted to ending slavery and the role of African American soldiers (GSE SSUSH9, Domain 2).
An EOC-level answer on emancipation for the Georgia Milestones US History exam: the Emancipation Proclamation and how it changed the war's purpose, the service of African American soldiers, the Gettysburg Address, and the Thirteenth Amendment that ended slavery, with worked stimulus and technology-enhanced questions.
- Identify the legal, political, and social dimensions of Reconstruction, including the Freedmen's Bureau, the Reconstruction Acts, and the Thirteenth, Fourteenth, and Fifteenth Amendments (GSE SSUSH10, Domain 2).
An EOC-level answer on Reconstruction for the Georgia Milestones US History exam: the competing Reconstruction plans, the Freedmen's Bureau, the Reconstruction Acts, and the Thirteenth, Fourteenth, and Fifteenth Amendments that abolished slavery and defined citizenship and voting rights, with worked stimulus and technology-enhanced questions.
- Analyze the end of Reconstruction and the rise of Jim Crow, including the Compromise of 1877, Black Codes, segregation, disfranchisement, and the Plessy v. Ferguson decision (GSE SSUSH10, Domain 2).
An EOC-level answer on the end of Reconstruction for the Georgia Milestones US History exam: the Compromise of 1877 that withdrew federal troops, the Black Codes and sharecropping, Jim Crow segregation and the disfranchisement of Black voters, and the Plessy v. Ferguson decision, with worked stimulus and technology-enhanced questions.
- Evaluate how westward expansion fulfilled Manifest Destiny and affected the Plains Indians, including the transcontinental railroad, the Homestead Act, the Dawes Act, and conflicts such as Little Bighorn and Wounded Knee (GSE SSUSH12, Domain 3).
An EOC-level answer on westward expansion for the Georgia Milestones US History exam: Manifest Destiny, the transcontinental railroad and the Homestead Act, the destruction of the buffalo and the Plains Indians' way of life, the Dawes Act and forced assimilation, and conflicts such as Little Bighorn and Wounded Knee, with worked stimulus and technology-enhanced questions.
- Evaluate how industry, big business, and labor affected the lives of Americans after the Civil War, including the growth of railroads, the rise of corporations, and the early labor movement (GSE SSUSH11, Domain 3).
An EOC-level answer on post-Civil War industry for the Georgia Milestones US History exam: the growth of the railroads and the rise of corporations, the conditions that drove workers to form unions, major strikes and the response of government and owners, and the philosophy of laissez-faire, with worked stimulus and technology-enhanced questions.
Sources & how we know this
- United States History Georgia Standards of Excellence (GSE) — Georgia Department of Education (2017)
- Georgia Milestones United States History Study/Resource Guide for Students and Parents — Georgia Department of Education (2022)