What was the major disagreement between the united states and the soviet union after world war ii?

I believe it's "The Soviet Union supported communism, while the United States supported democracy and a free market."

Explanation:

answer: researching and understanding issues being considered by lawmakers.

explanation:

lobbying is the act of attempting to influence a politician's behaviour. lobbyists can be members of a constituency, organizations, businesses, non-profit organizations or professional lobbyists.