Civil war

4. What violent action did John Brown lead against a federal armory in 1859?
6. What political party was formed in the 1850s to oppose the spread of slavery?
9. What proclamation freed enslaved people in Confederate states?
12. What heavily armored warships changed naval warfare during the Civil War?
13. What event in 1860 caused Southern states to secede from the Union?
14. means to officially end something, like slavery?

1. What act let new territories decide for themselves whether to allow slavery?
2. What was the Union’s plan to surround and squeeze the Confederacy like a snake?
3. What 1850 agreement admitted California as a free state and strengthened the Fugitive Slave Act?
5. What strategy did the Union use to cut off Confederate trade by sea?
6. What is the term for large military units made up of soldiers?
7. What was the name of the Northern states that fought against the Confederacy?
8. What word means to leave or withdraw from a country?
10. What was the name of the group of Southern states that seceded from the U.S.?
11. What type of warship used cotton bales for protection during battle?