Answer :
Final answer:
The USA and USSR relationship deteriorated post-WWII due to disagreements over Europe's future and ideological differences, leading to the Cold War and various forms of competition.
Explanation:
After World War II, the USA and USSR relationship deteriorated due to long-term disagreements over the future of Europe, ideological differences, and mistrust between Truman and Stalin. Conflict arose from issues like Soviet support for communist insurgency in Greece and attempts to control the straits between the Black Sea and the Mediterranean.
Results of this conflict included the Cold War, an arms race, espionage, propaganda, and competition for influence in other nations like Korea and Vietnam.
