Did you ever get the answer? I'm doing the part 2
Answer:
1945-1989 was period of United States foreign policy focused on the containment of the spread of communism in other nations also known as cold war.
Pickett's charge
This was an infantry assault ordered by confederate general Lee against union General Maj. Gen. George G. Meade's Union positions on July 3, 1863, which was the last day of the Battle of Gettysburg.The battle resulted to a major victory for the union soldiers and after the battle,the confederate had lost both politically and militarily.
To gain the southerners' support, Douglas proposed creating two territories in the area–Kansas and Nebraska and repealing the Missouri Compromise line. The question of whether the territories would be slave or free would be left to the settlers under Douglas's principle of popular sovereignty
