Ok what is this?Because I can Not figure it out PLEASE HELP

Explain in detail the events that led to the fall of the soviet union. explain the importance of the foreign policy shift from brinkmanship to détente during the cold war.be sure to include evidence to support your answer describe the challenges to nation-building that exist in africa today .

What would you call a political system that is only meant to last for a short time

  following the agreement that was reached in the treaty of indian springs in 1825, chief william mcintosh lost his life. why did this happen