The term 'PEACE, in Russian' can be represented by the three-letter word 'MIR'. This is a Russian word that translates to 'PEACE' in English. It is derived from the Proto-Slavic root *miru, which means 'world' or 'PEACE'. The word is used in many Slavic languages and is also found in other languages such as German, French, and Spanish. In Russian culture, the word 'MIR' is often used to express a desire for PEACE and harmony.