It allowed any State decide wether or not to allow slavery not depending on their location on a map.
To support the idea that the people need a right bear arms as a means of defending themselves
Answer:
The World War 1 experience impacted hugely on U.S. culture, domestic politics and society. The war also resulted in an increased demand for weapons abroad. This led to increased profits and heightened productivity in the American steel industry. World War 1 ushered in an era of using chemical weapons.