Answer:
1. Slavery
2. Republicans
3. Democrats
Explanation:
Slavery is the main reason the states fought and was a prevalent issue in the states for a long time mainly starting at the 3/5ths compromise. The two parties of Republican and Democrat were origianlly created as a single party, lead by Thomas Jefferson and James Madison, but were split into the Whig Party and The Democrats after a political division inside the party about the election of 1824. In the mid-nineteenth century the Democrats were split on the issue of slavery and eventually the Democrats in the north (+ the Whig Party and some other politicians) joined together to make a new Republican party that was against slavery (leaving the southern Democrats as pro-slavery).
The British used the idea of imperialism to to promote enlistment during the war by implying that if Britain lost, her empire would be lost as well.
Most famously, blitzkrieg describes the successful tactics used by Nazi Germany in the early years of World War II, as German forces swept through Poland, Norway, Belgium, Holland and France with astonishing speed and force.
What time period? maybe with a little more info I can help you
