How do they what? Can you please be specific when asking a question
Answer:
articles from magazines, journals, and newspapers after the event
Explanation:
it was published directly after said event had happened, making it a thorough secondary source
Answer: After World War II, relations between the U.S. and the U.S.S.R rapidly deteriorated. The United States believed it had behaved honorably to the Soviets, by, for example, holding back its troops from entering Berlin because it had agreed the Russians could take that city.