What was the reason for the breakdown in friendly relations between the united states and the soviet union after world war ii? what were the results of this conflict?

   Failure to reach agreement on the conduct of free democratic elections by the USSR, which resulted in gradual withdrawal, increased tensions and finally the Cold War

Explanation:  Before the end of WWII when the final victory of the Allies was already evident, the United States and the Soviet Union had some agreements, one of which was the conduct of free democratic elections in all the countries of Europe. As Eastern Europe according to these agreements belonged to the Soviet Interest Zone, the USSR was supposed to carry out the mentioned democratic elections in Eastern Europe. The Soviets did not respect it, guided by the idea of the World Communist Revolution, and imposed communism in Eastern European countries. On the other hand, the Western Allies were afraid of the spread of Communism and they wanted to prevent this. One of the things that has been done on this issue is the formation of the Western European Military Alliance of NATO, along with the Americans. In response, the Soviet Union formed the Warsaw Pact of the Eastern European Satellite States, and thus formed two opposing blocs. As the leaders of these two blocs, two super powers have been singled out, the USSR and the US, of course with their allies, and the relationship that has emerged between them is known as the Cold War period. The Cold War was the proof of world-class assets, political, military, economic. There were no direct military conflicts, but the financial and military support of other smaller states that were at war, so called proxy wars. It was also evident that there was an arms race, then a space race, as well as constant propaganda against the others and the maintenance of constant tension.

in griswold v. connecticut (1965), the supreme court ruled that a state's ban on the use of contraceptives violated the right to marital privacy.

a.

congress passed laws allowing for free passage between states.