How were soviet troops different from french and polish troops?

soviet troops were better organized.
soviet troops were more aggressive.
soviet troops refused to retreat or surrender.
soviet troops knew how to fight in difficult conditions.

The Soviet troops refused to retreat or surrender

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the exodus of these people from constantinople contributed to the revival of greek and roman studies, which led to the development of the renaissance in humanism and science. byzantine emigrants also brought to western europe the better preserved and accumulated knowledge of their own greek civilization