What was the Soviet Union's major concern during the cold war?

That The United States Was Trying To Destroy Their Way Of Life

Explanation:

The Soviet Union's major fear throughout the Cold War was that the United States was attempting to undermine the Soviet Union's way of life. Because they felt the United States was working hard on it, the Soviet Union tried to create a force that could equal NATO and America's in order to prevent any military action.

i confess that there are several parts of this constitution which i do not at present approve, but i am not sure i shall never approve them: for having lived long, i have experienced many instances of being obliged by better information or fuller consideration, to change opinions even on important subjects, which i once thought right, but found to be otherwise. it is therefore that the older i grow, the more apt i am to doubt my own judgment, and to pay more respect to the judgment of others.