The Confederate troops first fired at Fort Sumter in South Carolina. Less than 34 hours later, the union forces had to surrender to them. The reason this firing occurred, was over the debate on slavery. Sectionalism and secession also played part in beginning the civil war.
The correct answer is - preserved the union.
The Civil War in the United States was a long and bloody conflict. It was between the North and the South, the two halves that had totally different policies and ambitions for the future. Despite the war being terrible and with lot of people who lost their lives, as all wars, something good came out of it too. The big positive of the Civil War was that it actually managed to preserve the unity between the states, thus creating the mighty United States of America, which eventually became the biggest power house on the planet.
To show his support for the federal government's authority to tax.
