Having different political parties allows us to have diversification of ideas. No matter how right or wrong you are, you have a voice in this country. This ideal is clearly evident in the lopsided political parties we see today.
A major reason why the Soviet Union did actually create satellite states following World War II in Eastern Europe was because they wanted to create a buffer zone against future invasions (2).
The correct answer therefore is 2.
They did this because they actually thought that war with the West was possible. For that reason, having buffer states between themselves and between a possible Western invasion, would help them in their cause.
The building that was burnt during the war of 1812 was the Presidents Mansion