The USSR found this offensive to them and they responded by setting up the COMINFORM to co-ordinate their satellite states and to make sure everything that happened in those states was by Stalin’s commands.
To be able to “contain” the spread of communism, which USA believed succeeded when people faced poverty and hardship (like how Europe was after World War 2), they began the Marshall plan. This plan was in response to the Czechoslovakia communist takeover. These communists were actually trying to be independent from Moscow and Stalin’s commands but the Americans did not seem to think that. The Americans believed that it was another takeover by Stalin and it was also the last part of Eastern Europe that wasn’t already in communist rule.
So, in this plan they would literally give money to the Western Europe countries so they would not be in poverty or hardship which in theory meant that communism would not succeed. Also, this Marshall aid was good for American business as it would develop its business in Europe and this would ensure that the depression would not be repeated.
This was once again offensive to the USSR; they referred to the Marshall aid as the “dollar imperialism” which meant that they were trying to build a sphere of influence of their own in Western Europe with this Marshall Aid money. In response to that, Stalin forbade all of its satellite states from accepting any of that money; by not accepting the American money they wanted to be independent and self-sustained rather than rely on America and join its sphere of influence (which meant that communism would be abandoned). The USSR also set up the COMECON, the Communist Economic Council, which would basically do the same thing as Marshall Aid but the money would not come from America but the USSR instead (the only problem was that they had none).
In conclusion, the only reason why the US government adopted a more aggressive foreign policy in 1947 was to contain communism from spreading into the West of Europe, mainly because it would eventually lead to spreading into the US. Both the times that USSR was offended by US’ actions was because they were aggressive towards them, this was Truman’s iron fist policy to face Russia with. Another small point is that due to this aggressive foreign policy American businesses were developed in Europe and 16 European countries were helped out of poverty with Marshall Aid money.