History is the story of the interaction among people, their ideas, and

the environment

Explanation:

The history can be described as a story of the interaction among people, their ideas, and the environment. This science is very important for understanding the past, living in the present, and constructing the future. The history can be seen as the perfect science from which the human kind can learn from its past, from the positive actions, but even more from the negative ones, thus to try use the positives and avoid the negatives while striding toward the future. Unfortunately, a big problem in this science is the biased views, or the biased information they get for elaboration, which often causes problems instead of solving them.

the event is known to be the soviet union.

i think its provide for the common defense