Bloody Kansas and Election of President Lincoln
Explanation:
The South belived that Lincoln was going to free all the slaves until states from the south started to succeeded from the union. Bloody Kansas caused people from the north and south to compete for the right of free or non free slave state.
Answer:
Not sure
but I hope the attached image helps
C
Brinkmanship: Use a superior show of force to bluff the enemy into backing down.
Domino Theory: If one nation succumbs to Communism, it will set off a chain reaction in the region.
Containment: The main U.S. goal was to prevent Communism from spreading.