“War and Peace” has more complex history. First revision had nobles speaking French when suitable, because “everyone” could still speak some French in Tolstoy'

“War and Peace” has more complex history. First revision had nobles speaking French when suitable, because “everyone” could still speak some French in Tolstoy's times (just like people in IT all across the world link to original English documentation every day without even thinking about it). Then it was found that “everyone” meant “well-educated nobles like Tolstoy”. For second revision, Tolstoy rewrote all French utterances into Russian (and moved most of philosophical sections to dedicated postscripts). Then it was reverted to original form (with later corrections), but with translations of French text in footnotes. Second revision was printed in “cheap” editions, third revision was used in higher quality ones. Later Soviet prints follow Collected Works version based on French-enabled revision (and thorough comparison of printed editions and manuscripts). Depending on the age of your translation and its source, you may find any of those. Some translators also chose to translate French instead of using footnotes.